[patch_closed_bug] Re-enable the rule (#2083)

scripts/cron_run_weekdays.sh

@@ -145,8 +145,7 @@ python -m bugbot.rules.inactive_ni_pending --production
 python -m bugbot.rules.crash_signature_confirm --production
 
 # Bugs with patches after being closed
-# Disabled temporarily until fixing https://github.com/mozilla/bugbot/issues/1953
-# python -m bugbot.rules.patch_closed_bug --production
+python -m bugbot.rules.patch_closed_bug --production
 
 # Confirm bugs with affected flags
 python -m bugbot.rules.affected_flag_confirm --production