Modify FormatPullRequest.yml to allow for format comments

Author: mtfishman

.github/workflows/FormatPullRequest.yml

@@ -3,6 +3,9 @@ on:
   schedule:
     - cron: "0 0 * * *"
   workflow_dispatch: ~
+  issue_comment:
+    types:
+      - "created"
 permissions:
   contents: "write"
   pull-requests: "write"