Bump timeout for live test cleanup (#8691)

Author: benbp

eng/pipelines/live-test-cleanup.yml

@@ -69,6 +69,7 @@ stages:
 
   jobs:
   - job: Run
+    timeoutInMinutes: 120  # sometimes RP throttling slows down the cleanup script
     pool:
       name: azsdk-pool-mms-ubuntu-2204-general