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/webhook/webhook.go

@@ -224,7 +224,7 @@ func PrepareWebhooks(ctx context.Context, source EventSource, event webhook_mode
 		}
 		ws = append(ws, repoHooks...)
 
-		owner = source.Repository.MustOwner()
+		owner = source.Repository.MustOwner(ctx)
 	}
 
 	// check if owner is an org and append additional webhooks