Update stale.yml

Author: JeremyDolle

.github/stale.yml

@@ -1,7 +1,7 @@
 daysUntilStale: 20
 daysUntilClose: 7
 exemptLabels:
-  - ":sparkles: feature request"
+  - ":bulb: feature request/idea"
   - ":bug: bug"
   - ":white_check_mark: PR accepted"
 staleLabel: 💤 stale