feat(deploy): change instance size to professional-xs and update memory utilization alert window to 300 seconds

.do/deploy.template.yaml

@@ -23,7 +23,7 @@ spec:
   alerts:
     - rule: MEM_UTILIZATION
       value: 90
-      window: 5m          # Added window parameter
+      window: 300        # Changed from "5m" to 300 (5 minutes in seconds)
       operator: GREATER_THAN
       disabled: false
     - rule: DEPLOYMENT_FAILED