Shorten daysUntilStale to a month

.github/stale.yml

@@ -1,7 +1,7 @@
 # Number of days of inactivity before an issue becomes stale
-daysUntilStale: 60
+daysUntilStale: 30
 # Number of days of inactivity before a stale issue is closed
-daysUntilClose: 7
+daysUntilClose: 5
 # Issues with these labels will never be considered stale
 exemptLabels:
   - discussion