ci(octo-issue-feed): opt into webhook-only triage (#141)

Adds enable_im_notify: false to opt this repo out of the redundant IM
ping (multica triage agent creates a tracked issue). Backed by
Mininglamp-OSS/.github#80.

Author: lml2468

.github/workflows/octo-issue-feed.yml

@@ -16,6 +16,7 @@ jobs:
       issue_url: ${{ github.event.issue.html_url }}
       issue_author: ${{ github.event.issue.user.login }}
       event_action: ${{ github.event.action }}
+      enable_im_notify: false
     secrets:
       OCTO_BOT_TOKEN: ${{ secrets.OCTO_BOT_TOKEN }}
-      TRIAGE_WEBHOOK_URL: ${{ secrets.TRIAGE_WEBHOOK_URL }}
+      TRIAGE_WEBHOOK_URL: ${{ secrets.TRIAGE_WEBHOOK_URL }}