Merge pull request #89 from waja/dependabot-github_actions-actions-ca…

…che-4

Bump actions/cache from 3 to 4

.github/workflows/docker.image.yml

@@ -266,7 +266,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Cache Docker layers
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-buildx-${{ github.sha }}