[AMBARI-26446]Fix .asf.yaml generation in GitHub Actions workflow

[rich7420]

What changes were proposed in this pull request?

This pull request fixes an issue in the Update .asf.yaml step of the GitHub Actions workflow (.github/workflows/website.yml). Previously, the echo 'publish:' > .asf.yaml command overwrote the entire .asf.yaml file, causing the staging section to be lost. The updated file now matches the expected structure:

staging:
  profile: ~
  whoami: asf-site

publish:
  whoami: asf-site

How was this patch tested?

This patch was tested locally using the act tool to simulate the GitHub Actions workflow:

• Run act -j build-website-deploy --container-architecture linux/amd64 to execute the workflow.
  Verified that the .asf.yaml file was correctly generated in the asf-site branch with both staging and publish sections.
• Confirmed that the workflow steps (Checkout, Use Node.js, Install Yarn, Build Main Document, and Update .asf.yaml) completed successfully without errors.
• or making a pr for trying online GitHub Actions workflow

Please review Ambari Contributing Guide before opening a pull request.

[jojochuang]

So that problem is solved but there's still one more:

remote: Permission to apache/ambari-website.git denied to github-actions[bot].
fatal: unable to access 'https://github.com/apache/ambari-website/': The requested URL returned error: 403

[rich7420]

So that problem is solved but there's still one more:

remote: Permission to apache/ambari-website.git denied to github-actions[bot].
fatal: unable to access 'https://github.com/apache/ambari-website/': The requested URL returned error: 403

It see we need to set Actions > General workflow permission Read and write permission of github-actions[bot]. I don't have permission to set. Need your help.

[jojochuang]

I actually don't have the access. Will ask Apache Infra to set up it. Meanwhile, let's merge this one.