Replace cache action with setup-python feature.

Author: stefanholek

.github/workflows/python-package.yml

@@ -35,21 +35,8 @@ jobs:
         uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
-
-      - name: Get pip cache info
-        id: pip-cache
-        run: |
-          echo dir=$(python -m pip cache dir) >> $GITHUB_OUTPUT
-          echo py=$(python -c'import sys; print("%d.%d" % sys.version_info[:2])') >> $GITHUB_OUTPUT
-          echo dir=$(python -m pip cache dir)
-          echo py=$(python -c'import sys; print("%d.%d" % sys.version_info[:2])')
-
-      - name: Cache pip
-        uses: actions/cache@v5
-        with:
-          path: ${{ steps.pip-cache.outputs.dir }}
-          key: ${{ runner.os }}-pip-py${{ steps.pip-cache.outputs.py }}-${{ hashFiles('setup.cfg') }}
-          restore-keys: ${{ runner.os }}-pip-py${{ steps.pip-cache.outputs.py }}-
+          cache: pip
+          cache-dependency-path: setup.cfg
 
       - name: Install dependencies
         run: python -m pip install -e .