Update docker/build-push-action digest to f9f3042 (#404)

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

Author: renovate[bot]

.github/workflows/build.yaml

@@ -54,7 +54,7 @@ jobs:
 
       # Build
       - name: Build image
-        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7
+        uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7
         with:
           context: .
           file: dockerfiles/${{ matrix.key }}.Dockerfile
@@ -68,7 +68,7 @@ jobs:
 
       # Push image
       - name: Push image
-        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7
+        uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7
         id: build-and-push
         with:
           context: .