Update actions/cache action to v5 (#50)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/python-publish.yml

@@ -33,7 +33,7 @@ jobs:
         run: |
           poetry config virtualenvs.create true --local
           poetry config virtualenvs.in-project true --local
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         name: Define a cache for the virtual environment based on the dependencies lock file
         with:
           path: ./.venv