build(deps): bump docker/build-push-action from 6.7.0 to 6.8.0 (open-…

…telemetry#1729)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.7.0 to 6.8.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.7.0...v6.8.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/component-build-images.yml

@@ -162,7 +162,7 @@ jobs:
             max-parallelism = 2
       - name: Matrix Build and push demo images
         if: steps.check_changes.outputs.skip == 'false'
-        uses: docker/build-push-action@v6.7.0
+        uses: docker/build-push-action@v6.8.0
         with:
           context: ${{ matrix.file_tag.context }}
           file: ${{ matrix.file_tag.file }}