Fixed docs for cloud modules (#23745)

* Fixed docs for cloud modules

* removed blank line in ec2_snapshot_facts

lib/ansible/modules/cloud/google/gce_mig.py

@@ -206,7 +206,7 @@ named_ports:
 size:
     description: Number of VMs in Managed Instance Group.
     returned: changed
-    type: integer
+    type: int
     sample: 4
 
 created_instances:

lib/ansible/modules/cloud/google/gcp_backend_service.py

@@ -176,7 +176,7 @@ timeout:
     description: In seconds, how long before a request sent to a backend is
                  considered failed.
     returned: If specified.
-    type: integer
+    type: int
     sample: "myhttpport"
 '''
 

lib/ansible/modules/cloud/google/gcpubsub.py

@@ -159,13 +159,13 @@ publish:
     description: List of dictionaries describing messages and attributes to be published.  Dictionary is in message(str):attributes(dict) format.
                  Only message is required.
     returned: Only when specified
-    type: list of dictionary
+    type: list
     sample: "publish: ['message': 'my message', attributes: {'key1': 'value1'}]"
 
 pulled_messages:
     description: list of dictionaries containing message info.  Fields are ack_id, attributes, data, message_id.
     returned: Only when subscription.pull is specified
-    type: list of dictionary
+    type: list
     sample: [{ "ack_id": "XkASTCcYREl...","attributes": {"key1": "val1",...}, "data": "this is message 1", "message_id": "49107464153705"},..]
 
 state: