cs_vpc_offering: listVPCOffering API returns any matching names (#37783)

* fix listVPCOffering API method returns any matching names

* fix build_ci no-underscore-variable

* clearer variable name

* making it simpler

lib/ansible/modules/cloud/cloudstack/cs_vpc_offering.py

@@ -149,7 +149,9 @@ class AnsibleCloudStackVPCOffering(AnsibleCloudStack):
         vo = self.query_api('listVPCOfferings', **args)
 
         if vo:
-            self.vpc_offering = vo['vpcoffering'][0]
+            for vpc_offer in vo['vpcoffering']:
+                if args['name'] == vpc_offer['name']:
+                    self.vpc_offering = vpc_offer
 
         return self.vpc_offering