Update issue_stale.yaml

to 14-14 days.

Author: Kin-Zhang

.github/workflows/issue_stale.yaml

@@ -4,7 +4,7 @@ on:
     - cron: "35 11 * * *"
 
 env:
-  DAYS_BEFORE_ISSUE_STALE: 30
+  DAYS_BEFORE_ISSUE_STALE: 14
   DAYS_BEFORE_ISSUE_CLOSE: 14
 
 jobs: