build: allow manual run of feature request action

add "workflow_dispatch:" so that action can be run
manuallyl for debugging.

Signed-off-by: Michael Dawson <[email protected]>

PR-URL: #42037
Reviewed-By: Mestery <[email protected]>
Reviewed-By: Richard Lau <[email protected]>

Author: mhdawson

.github/workflows/close-stale-feature-requests.yml

@@ -1,5 +1,6 @@
 name: Close stale feature requests
 on:
+  workflow_dispatch:
   schedule:
     # Run every day at 1:00 AM UTC.
     - cron: 0 1 * * *