docs: Update TODO comment with Jira ticket

Author: andrevitalb

src/apps/answers/domain/answers.py

@@ -675,7 +675,7 @@ class AnswersCheck(PublicModel):
     applet_id: uuid.UUID
     # TODO: created_at can be safely removed after
     # the corresponding mobile PR is merged
-    # https://github.com/mindlogger/mindlogger-app-refactor/pull/1024
+    # https://mindlogger.atlassian.net/browse/M2-9693
     created_at: int | None = None
     activity_id: str
     submit_id: uuid.UUID | None = None