build: Update weekly workflow to add a comment

.github/workflows/add-weekly-gh-requests.yml

@@ -1,7 +1,7 @@
 name: Create weekly issues
 on:
   schedule:
-    - cron: 0 11 * * 2
+    - cron: 0 12 * * 2
   workflow_dispatch: {}
 
 env:
@@ -16,11 +16,11 @@ jobs:
       issues: write
     steps:
       - run: |
-          gh issue create --repo "openedx/axim-engineering" \
+          new_issue_url=$(gh issue create --repo "openedx/axim-engineering" \
             --title "Welcome new discourse members" \
             --label "github-request" \
             --body "Go through [new discourse
             introductions](https://discuss.openedx.org/c/community/introductions/18)
-            and welcome new people to the community."
+            and welcome new people to the community.")
           gh issue comment "$new_issue_url" \
             --body "@openedx/axim-oncall heads up on this request"