Fix commit comment in IPtrunks

lso/routes/ip_trunk.py

@@ -49,7 +49,7 @@ def provision_ip_trunk(params: IPTrunkProvisioningParams) \
         'dry_run': str(params.dry_run),
         'verb': 'deploy',
         'object': params.object,
-        'commit_comment': f"Iprunk {params.subscription['iptrunk']['geant_s_sid']} ({params.subscription['id']}) - deployment of {params.object}"  
+        'commit_comment': f"Iprunk {params.subscription['iptrunk']['geant_s_sid']} ({params.subscription['subscription_id']}) - deployment of {params.object}"  
     }
 
     return run_playbook(