chore(deps): bump docker/build-push-action from 5 to 6 (#1340)

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](https://github.com/docker/build-push-action/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/coordinator-image.yml

@@ -75,7 +75,7 @@ jobs:
         echo ${{ steps.commit.outputs.long }}>"commit_sha"
 
     - name: 'Build and push Docker image'
-      uses: docker/build-push-action@v5
+      uses: docker/build-push-action@v6
       with:
         context: .
         push: true

.github/workflows/selfhosted-client-image.yml

@@ -85,7 +85,7 @@ jobs:
       uses: docker/setup-buildx-action@v3
 
     - name: 'Build and push Docker image'
-      uses: docker/build-push-action@v5
+      uses: docker/build-push-action@v6
       with:
         context: ./nodeapp
         platforms: linux/amd64,linux/arm64

.github/workflows/web-client-image.yml

@@ -85,7 +85,7 @@ jobs:
       uses: docker/setup-buildx-action@v3
 
     - name: 'Build and push Docker image'
-      uses: docker/build-push-action@v5
+      uses: docker/build-push-action@v6
       with:
         context: ./web
         platforms: linux/amd64,linux/arm64