Bump docker/build-push-action from 5 to 6

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5 to 6.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5...v6)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/docker.yml

@@ -28,7 +28,7 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: .devcontainer/Dockerfile.dev

.github/workflows/release.yml

@@ -43,14 +43,14 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Build and push
         id: docker_build
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           push: true
           tags: ${{ secrets.DOCKERHUB_USERNAME }}/gdsfactory:latest,${{ secrets.DOCKERHUB_USERNAME }}/gdsfactory:7.27.1
           file: .devcontainer/Dockerfile.dev
       - name: Build and push minimal
         id: docker_build_minimal
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           push: true
           tags: ${{ secrets.DOCKERHUB_USERNAME }}/gdsfactory_minimal:latest,${{ secrets.DOCKERHUB_USERNAME }}/gdsfactory_minimal:7.27.1