Merge pull request #6 from kmturbulenz/dependabot/github_actions/acti…

…ons/cache-4

Bump actions/cache from 3 to 4

.github/workflows/build-image.yml

@@ -30,7 +30,7 @@ jobs:
       run: echo "PREV_COMMIT_SHA=$(git rev-parse HEAD~1)" >> $GITHUB_ENV
 
     - name: Cache Docker layers
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: /tmp/.buildx-cache
         key: build-${{ github.sha }}