Bump docker/build-push-action from 5 to 6 in the all group

Bumps the all group with 1 update: [docker/build-push-action](https://github.com/docker/build-push-action).


Updates `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
  dependency-group: all
...

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

.github/workflows/ci.yml

@@ -174,7 +174,7 @@ jobs:
       # Push `latest` when commiting to main
       - name: Build and push
         if: github.ref == 'refs/heads/main'
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64,linux/arm64
           context: .
@@ -186,7 +186,7 @@ jobs:
       # Push `{VERSION}` when pushing a new tag
       - name: Build and push
         if: startsWith(github.event.ref, 'refs/tags') || github.event_name == 'release'
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64,linux/arm64
           context: .