chore(deps): update actions/cache action to v5

Author: renovate[bot]

.github/workflows/migrations-mysql8-check.yml

@@ -34,7 +34,7 @@ jobs:
         echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
     - name: Cache pip dependencies
       id: cache-dependencies
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ${{ steps.pip-cache-dir.outputs.dir }}
         key: ${{ runner.os }}-pip-${{ hashFiles('requirements/pip_tools.txt') }}