ci: Update CI workflow to support multiple platforms

- Add `DOCKER_DEFAULT_PLATFORM` environment variable in the GitHub workflow
- Implement changes to optimize image publishing process

.github/workflows/publish-image.yaml

@@ -16,6 +16,7 @@ jobs:
 
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      DOCKER_DEFAULT_PLATFORM: ${{ matrix.platform }}
 
     steps:
       - uses: actions/checkout@v4