chore(deps): bump docker/build-push-action from 6.12.0 to 6.13.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.12.0 to 6.13.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.12.0...v6.13.0)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build-containers.yml

@@ -41,7 +41,7 @@ jobs:
           password: ${{ secrets.DOCKER_HUB_PASSWORD }}
       # builds container
       - name: Build and push FlowForge Application container
-        uses: docker/build-push-action@v6.12.0
+        uses: docker/build-push-action@v6.13.0
         with:
           context: helm/flowforge-container
           file: helm/flowforge-container/Dockerfile
@@ -92,7 +92,7 @@ jobs:
           username: flowforge
           password: ${{ secrets.DOCKER_HUB_PASSWORD }}
       - name: Build and push FlowForge Application container
-        uses: docker/build-push-action@v6.12.0
+        uses: docker/build-push-action@v6.13.0
         with:
           context: helm/node-red-container
           file: helm/node-red-container/Dockerfile
@@ -143,7 +143,7 @@ jobs:
           username: flowforge
           password: ${{ secrets.DOCKER_HUB_PASSWORD }}
       - name: Build and push FlowForge Application container
-        uses: docker/build-push-action@v6.12.0
+        uses: docker/build-push-action@v6.13.0
         with:
           context: helm/node-red-container
           file: helm/node-red-container/Dockerfile-2.2.x
@@ -180,7 +180,7 @@ jobs:
           username: flowforge
           password: ${{ secrets.DOCKER_HUB_PASSWORD }}
       - name: Build and push FlowForge Application container
-        uses: docker/build-push-action@v6.12.0
+        uses: docker/build-push-action@v6.13.0
         with:
           context: helm/node-red-container
           file: helm/node-red-container/Dockerfile-3.1
@@ -217,7 +217,7 @@ jobs:
           username: flowforge
           password: ${{ secrets.DOCKER_HUB_PASSWORD }}
       - name: Build and push FlowForge Application container
-        uses: docker/build-push-action@v6.12.0
+        uses: docker/build-push-action@v6.13.0
         with:
           context: helm/node-red-container
           file: helm/node-red-container/Dockerfile-4.0
@@ -253,7 +253,7 @@ jobs:
           username: flowforge
           password: ${{ secrets.DOCKER_HUB_PASSWORD }}
       - name: Build and push FlowForge File Server container
-        uses: docker/build-push-action@v6.12.0
+        uses: docker/build-push-action@v6.13.0
         with:
           context: helm/file-server
           file: helm/file-server/Dockerfile