chore: allow bigframes tests to use compute engine credentials

[tswast]

This is in response to internal issue b/537733439 where the tests are being skipped on the internal test cluster
🦕

[gemini-code-assist]

Code Review

This pull request removes the checks for the GOOGLE_APPLICATION_CREDENTIALS environment variable in the run_system and prerelease session functions within packages/bigframes/noxfile.py. This prevents the sessions from being skipped when the environment variable is not explicitly set. There are no review comments, and I have no feedback to provide.

[tswast]

import-profiler failure:

Collecting pyproj>=3.5.0 (from geopandas>=0.12.2->bigframes==2.46.0)
  Downloading pyproj-3.7.2.tar.gz (226 kB)
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'error'
  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [1 lines of output]
      proj executable not found. Please set the PROJ_DIR variable. For more information see: https://pyproj4.github.io/pyproj/stable/installation.html
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'pyproj' when getting requirements to build wheel
Error in worker process:
Traceback (most recent call last):
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 447, in <module>
    run_worker(target_module)
    ~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 57, in run_worker
    importlib.import_module(target_module)
    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.15.0-beta.4/x64/lib/python3.15/importlib/__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1381, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1346, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1298, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'bigframes'

Profiling start... Running 11 cold-start iterations for bigframes.
Sweeping directory to delete __pycache__ and force bytecode recompilation...
Cleared 0 cached bytecode locations.
CPU Pinning enabled: Pinning processes to core 0 using taskset.
Traceback (most recent call last):
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 458, in <module>
    sys.exit(run_master(args.iterations, target_module, args.cpu, args.csv, not args.keep_pycache, args.fail_threshold, args.diff_baseline, args.diff_threshold))
             ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 210, in run_master
    raise e
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 191, in run_master
    data = _run_worker_and_parse(cmd)
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 108, in _run_worker_and_parse
    result = subprocess.run(cmd, capture_output=True, text=True, check=True)
  File "/opt/hostedtoolcache/Python/3.15.0-beta.4/x64/lib/python3.15/subprocess.py", line 692, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['taskset', '-c', '0', '/home/runner/work/google-cloud-python/google-cloud-python/packages/bigframes/.venv-profiler/bin/python', '-B', '/tmp/tmp.z1QMiFbCcE/profiler.py', '--worker', '--module=bigframes']' returned non-zero exit status 1.
Obtaining file:///home/runner/work/google-cloud-python/google-cloud-python/packages/bigframes
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Checking if build backend supports build_editable: started
  Checking if build backend supports build_editable: finished with status 'done'
  Getting requirements to build editable: started
  Getting requirements to build editable: finished with status 'done'
  Preparing editable metadata (pyproject.toml): started
  Preparing editable metadata (pyproject.toml): finished with status 'done'

TBH, I don't know that the purpose of that job is, and it's not marked as required, so maybe safe to ignore?

[shuoweil]

import-profiler failure:

Collecting pyproj>=3.5.0 (from geopandas>=0.12.2->bigframes==2.46.0)
  Downloading pyproj-3.7.2.tar.gz (226 kB)
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'error'
  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [1 lines of output]
      proj executable not found. Please set the PROJ_DIR variable. For more information see: https://pyproj4.github.io/pyproj/stable/installation.html
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'pyproj' when getting requirements to build wheel
Error in worker process:
Traceback (most recent call last):
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 447, in <module>
    run_worker(target_module)
    ~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 57, in run_worker
    importlib.import_module(target_module)
    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.15.0-beta.4/x64/lib/python3.15/importlib/__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1381, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1346, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1298, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'bigframes'

Profiling start... Running 11 cold-start iterations for bigframes.
Sweeping directory to delete __pycache__ and force bytecode recompilation...
Cleared 0 cached bytecode locations.
CPU Pinning enabled: Pinning processes to core 0 using taskset.
Traceback (most recent call last):
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 458, in <module>
    sys.exit(run_master(args.iterations, target_module, args.cpu, args.csv, not args.keep_pycache, args.fail_threshold, args.diff_baseline, args.diff_threshold))
             ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 210, in run_master
    raise e
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 191, in run_master
    data = _run_worker_and_parse(cmd)
  File "/tmp/tmp.z1QMiFbCcE/profiler.py", line 108, in _run_worker_and_parse
    result = subprocess.run(cmd, capture_output=True, text=True, check=True)
  File "/opt/hostedtoolcache/Python/3.15.0-beta.4/x64/lib/python3.15/subprocess.py", line 692, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['taskset', '-c', '0', '/home/runner/work/google-cloud-python/google-cloud-python/packages/bigframes/.venv-profiler/bin/python', '-B', '/tmp/tmp.z1QMiFbCcE/profiler.py', '--worker', '--module=bigframes']' returned non-zero exit status 1.
Obtaining file:///home/runner/work/google-cloud-python/google-cloud-python/packages/bigframes
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Checking if build backend supports build_editable: started
  Checking if build backend supports build_editable: finished with status 'done'
  Getting requirements to build editable: started
  Getting requirements to build editable: finished with status 'done'
  Preparing editable metadata (pyproject.toml): started
  Preparing editable metadata (pyproject.toml): finished with status 'done'

TBH, I don't know that the purpose of that job is, and it's not marked as required, so maybe safe to ignore?

HI @tswast Our sister team checked in this new test, but they did not test on python 3.15. I have filed the bug to them to fix it. Please ignore these failures until they fix the bug.