chore(ci): remove redundant pip/setuptools/wheel upgrade step from wo… (#17715)

This PR removes the redundant `Upgrade pip, setuptools, and wheel` step
from the host runner environment in
`.github/workflows/import-profiler.yml`.

Since `ci/run_single_test.sh` now initializes its own virtual
environment and upgrades/installs `pip` and `setuptools` inside
`.venv-profiler`, upgrading them in the host runner environment is
redundant and has no effect on the actual profile checks.

Author: hebaalazzeh

.github/workflows/import-profiler.yml

@@ -26,9 +26,6 @@ jobs:
       with:
         python-version: "3.15"
         allow-prereleases: true
-    - name: Upgrade pip, setuptools, and wheel
-      run: |
-        python -m pip install --upgrade setuptools pip wheel
     - name: Run import profiler
       env:
         BUILD_TYPE: presubmit