Updating auto-stale conditions (90 days warning, 10 days to respond, …

…only issues, ignore assigned issues)

.github/stale.yml

@@ -1,7 +1,7 @@
 # Number of days of inactivity before an issue becomes stale
-daysUntilStale: 60
+daysUntilStale: 90
 # Number of days of inactivity before a stale issue is closed
-daysUntilClose: 7
+daysUntilClose: 10
 # Issues with these labels will never be considered stale
 exemptLabels:
   - pinned
@@ -15,4 +15,8 @@ markComment: >
   recent activity. It will be closed if no further activity occurs. Thank you
   for your contributions.
 # Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false
+closeComment: false
+# Only close issues
+only: issues
+# Don't close issues which are assigned to somebody
+exemptAssignees: true