Moreover, the voting on this submission looks promotional. Accounts that do that eventually lose their voting rights here. On HN, we want people to vote for stories they run across and personally find curious—not things that they or their friends or employers want to promote.
The previous story was about Google's Cloud Build without any mention of GitHub, and the discussion you linked has comments bemoaning the lack GitHub integration.
This story is about GitHub's integration with Cloud Build. I considered the news interesting and upvoted because it answered the questions posed by previous comments.
Do I now need to be concerned about being banned when I upvote a story on your site?
If you're just voting out of curiosity, which it sounds like you are, then it's unlikely your account will be penalized. I mean, the software isn't perfect, but it doesn't tar everyone with the same brush in a case like this.
Moreover, the voting on this submission looks promotional. Accounts that do that eventually lose their voting rights here. On HN, we want people to vote for stories they run across and personally find curious—not things that they or their friends or employers want to promote.