ci: Fix timeout by upgrading scikit-learn to latest bugfix (#1141)

Co-authored-by: Thomas S. <[email protected]>

.github/workflows/backend.yml

@@ -102,10 +102,12 @@ jobs:
         run: |
           python -m pip install --upgrade "pip"
           python -m pip install --upgrade "build"
-          python -m pip install --upgrade "scikit-learn ==${{ matrix.scikit-learn }}"
+          # adding `.*` to the version ensures that we install the latest version of
+          # scikit-learn that is compatible with the specified version
+          python -m pip install --upgrade "scikit-learn ==${{ matrix.scikit-learn }}.*"
 
           # Install `skore` and its dependencies
-          python -m pip install --upgrade ".[test]"
+          python -m pip install --upgrade --upgrade-strategy=eager ".[test]"
 
           # Uninstall the `skore` package itself
           python -m pip uninstall -y "skore"
@@ -127,6 +129,11 @@ jobs:
           # Install `skore` without its dependencies, which are present in the venv
           wheel=(dist/*.whl); python -m pip install --force-reinstall --no-deps "${wheel}"
 
+      - name: Show dependencies versions
+        working-directory: skore/
+        run: |
+          python -c "import skore; skore.show_versions()"
+
       - name: Test without coverage
         if: ${{ ! matrix.coverage }}
         timeout-minutes: 10
@@ -139,7 +146,7 @@ jobs:
         working-directory: skore/
         run: |
           mkdir coverage
-          python -m pytest src/ tests/ --junitxml=coverage/coverage.xml --cov-config=pyproject.toml --cov | tee coverage/coverage.txt
+          python -m pytest -n auto src/ tests/ --junitxml=coverage/coverage.xml --cov-config=pyproject.toml --cov | tee coverage/coverage.txt
 
       - name: Upload coverage reports
         if: ${{ matrix.coverage && (github.event_name == 'pull_request') }}