fix: handle unexpected 'loop' in actions field

Updated the change_actions method in inspection rules to account for
unexpected 'loop' values being added to the actions field by the API.

Although the API is not expected to include 'loop', it's still
appearing in some responses, causing issues.
This update ensures such cases are handled gracefully.

Related-Bug: 2105478
Change-Id: I9e03cd8d7640037cb98bc2586ddc03ed264ce2ac

ironic/api/controllers/v1/inspection_rule.py

@@ -41,11 +41,18 @@ DEFAULT_RETURN_FIELDS = ['uuid', 'priority', 'phase', 'description']
 
 
 def convert_actions(rpc_actions):
-    return [{
-        'op': action['op'],
-        'args': action['args'],
-        'loop': action.get('loop', [])
-    } for action in rpc_actions]
+    converted_actions = []
+    for action in rpc_actions:
+        result = {
+            'op': action['op'],
+            'args': action['args']
+        }
+
+        if action.get('loop', []):
+            result['loop'] = action['loop']
+
+        converted_actions.append(result)
+    return converted_actions
 
 
 def convert_conditions(rpc_conditions):