Enable stale bot

.github/stale.yml

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+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 60
+
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - "🔥 Critical"
+  - "❗️Medium"
+
+# Label to use when marking an issue as stale
+staleLabel: wontfix
+
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. 
+
+  If you think it shouldn't be closed, speak now or forever hold your peace.
+
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false