Bump docker/build-push-action from 3 to 6 (#261)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3 to 6.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v3...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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build-by-tag.yaml

@@ -36,7 +36,7 @@ jobs:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: Build image and push to GitHub Container Registry
-      uses: docker/build-push-action@v3
+      uses: docker/build-push-action@v6
       with:
         context: .
         push: ${{ github.event_name != 'pull_request' }}