fix(plan): remove redundant notify block from add_inventory_hostnames

- Eliminate unnecessary notify block indicating inventory update
- Streamline the plan for better readability and performance

Author: CoMfUcIoS

spec/acceptance/peadm_spec/plans/add_inventory_hostnames.pp

@@ -15,5 +15,4 @@
     $command = "yq eval '(.groups[].targets[] | select(.uri == \"${result.target.uri}\").name) = \"${result.value}\"' -i ${inventory_file}"
     run_command($command, 'localhost')
   }
-  notify { 'Inventory updated': }
 }