Add context.Context to more methods (#21546)

This PR adds a context parameter to a bunch of methods. Some helper
`xxxCtx()` methods got replaced with the normal name now.

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

services/repository/adopt.go

@@ -96,7 +96,7 @@ func AdoptRepository(doer, u *user_model.User, opts repo_module.CreateRepoOption
 		return nil, err
 	}
 
-	notification.NotifyCreateRepository(doer, u, repo)
+	notification.NotifyCreateRepository(db.DefaultContext, doer, u, repo)
 
 	return repo, nil
 }