Need to approve all build for protected repo

On a personal instance, when I configure the repo to protected I need to sign the drone file as excepted.

During the first build, I need to approve because I just sign it which is fine.
However, during the following build I need to approve every build on first step which is weird.

What should I do?
I don’t know if it’s useful to know or not but I use Gitea.

Thanks