Update docker/build-push-action action to v7 (#490)

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
             ${{ vars.DOCKER_ORGANIZATION }}/${{ env.IMAGE_NAME }}
             ${{ vars.REGISTRY_GITHUB }}/${{ github.repository }}
       - name: Build image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: false

.github/workflows/publish.yml

@@ -48,7 +48,7 @@ jobs:
             ${{ vars.REGISTRY_GITHUB }}/${{ github.repository }}
 
       - name: Build and push image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: true