Allow owners/members/collab to trigger galata update on other's PR (#7572)

Author: krassowski

.github/workflows/playwright-update.yml

@@ -13,7 +13,10 @@ jobs:
       (
         github.event.issue.author_association == 'OWNER' ||
         github.event.issue.author_association == 'COLLABORATOR' ||
-        github.event.issue.author_association == 'MEMBER'
+        github.event.issue.author_association == 'MEMBER' ||
+        github.event.comment.author_association == 'OWNER' ||
+        github.event.comment.author_association == 'COLLABORATOR' ||
+        github.event.comment.author_association == 'MEMBER'
       ) && github.event.issue.pull_request && (
         contains(github.event.comment.body, 'please update playwright snapshots') ||
         contains(github.event.comment.body, 'please update galata snapshots') ||