Fix missing configs in pip install and unregistered OmegaConf resolvers in tests

[gbg141]

Changes

• pyproject.toml: Added "configs" to [tool.setuptools.packages.find] and a [tool.setuptools.package-data] entry with configs = ["**/*.yaml"] so the Hydra config files are bundled when installing via pip install git+...
• test/_utils/simplified_pipeline.py: Replaced a stale, partial set of manual OmegaConf.register_new_resolver(...) calls with a single register_all_resolvers() call
• test/utils/test_config_resolvers.py: Added register_all_resolvers() to setup_method before hydra.initialize() so all custom resolvers are available when Hydra composes configs

Fixes

• configs/ directory missing after pip install git+...
• omegaconf.errors.UnsupportedInterpolationType: Unsupported interpolation type define_task_level in test/pipeline/test_pipeline.py
• omegaconf.errors.UnsupportedInterpolationType: Unsupported interpolation type set_preserve_edge_attr in test/utils/test_config_resolvers.py

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.06%. Comparing base (76c82e2) to head (c316049).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #341      +/-   ##
==========================================
- Coverage   94.06%   94.06%   -0.01%     
==========================================
  Files         207      206       -1     
  Lines        8730     8726       -4     
==========================================
- Hits         8212     8208       -4     
  Misses        518      518              

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