I have several repos that depend on 1 lib repo. For now I'm doing a manual version bump. I can't imagine have to bump to multiple repos in the future when I have more and more repo that depends on my lib.
How can I push to other repos (develop branch), in github action? I did my research, it seems like it only doable in my lib repo, not others.
To push to another repo first you need to clone it. You can do this with the actions/checkout action. Use the repository input to specify the external repo to clone. Additionally, you will need to provide a token or ssh-key input to be able to push back to the repo (and to clone if it a private repo).
It sounds like you also need to push to a specific non-default branch, so you'll want to specify a ref input to checkout the needed branch.
Then, as the next step you can use run to run the commands needed to bump your version and then git add/commit/push to update the repos.