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] <[email protected]>

.github/workflows/build.yml

@@ -35,7 +35,7 @@ jobs:
  username: ${{ secrets.DOCKERHUBUNAME }}
  password: ${{ secrets.DOCKERHUBTOKEN }} 
  - name: Build and push
- uses: docker/build-push-action@v5
+ uses: docker/build-push-action@v6
  with:
  context: .
  builder: ${{ steps.buildx.outputs.name }}

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
  - name: Available platforms
  run: echo ${{ steps.buildx.outputs.platforms }}
  - name: Build only
- uses: docker/build-push-action@v5
+ uses: docker/build-push-action@v6
  with:
  context: .
  platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x,linux/386,linux/arm/v7,linux/arm/v6