How to hide VSCode "Publish changes" action button from source control tab

The related release note https://code.visualstudio.com/updates/v1_61#_publish-or-sync-action-button-for-git-repositories

// settings.json

{
  "git.showUnpublishedCommitsButton": "never",
}

This setting worked for me. Found it here.

  "git.showActionButton": {
    "commit": false,
    "publish": false,
    "sync": false
  }