ci: rewrite workflows

[dinoallo]

1. remove stale workflow files
2. remove all robot account usage
3. avoid always building all controllers, frontends

[pull-request-size[bot]]

Whoa! Easy there, Partner!

This PR is too big. Please break it up into smaller PRs.

[dinoallo]

https://github.com/labring/sealos/issues/5516

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