GCP MagicModules bug fixes (#47285)

Closes: #46930 #46929 #46928 #46927 #46926 #46925 #46924 #46923 #46922 #46921 #46920 #46919 #46918 #46917 #46916 #46915 #46914 #46913 #46912 #46911 #46910 #46909 #46908 #46907 #46906 #46905 #46903 #46902 #46901 #46900 #46899 #46898 #46897 #46896 #46895 #46894 #46893 #46892 #46891 #46890 #46889 #46888 #46887 #46886 #46885 #46884 #46883 #46882 #46881 #46880 #46879 #46878 #46877 #46876 #46875 #46874 #46873 #46872 #46871 #46870 #46869 #46868 #46867 #46866 #46865 #46864 #46863 #46862 #46861 #46860 #46859 #46858 #46857 #46856 #46855 #46854 #46853 #46852

plugins/modules/gcp_compute_instance_group_facts.py

@@ -61,7 +61,7 @@ EXAMPLES = '''
       filters:
       - name = test_object
       project: test_project
-      auth_kind: service_account
+      auth_kind: serviceaccount
       service_account_file: "/tmp/auth.pem"
 '''
 
@@ -71,7 +71,7 @@ items:
     returned: always
     type: complex
     contains:
-        creation_timestamp:
+        creationTimestamp:
             description:
                 - Creation timestamp in RFC3339 text format.
             returned: success
@@ -93,7 +93,7 @@ items:
                 - The name must be 1-63 characters long, and comply with RFC1035.
             returned: success
             type: str
-        named_ports:
+        namedPorts:
             description:
                 - Assigns a name to a port number.
                 - 'For example: {name: "http", port: 80}.'
@@ -135,6 +135,15 @@ items:
                 - A reference to the zone where the instance group resides.
             returned: success
             type: str
+        instances:
+            description:
+                - The list of instances associated with this InstanceGroup.
+                - All instances must be created before being added to an InstanceGroup.
+                - All instances not in this list will be removed from the InstanceGroup and will not
+                  be deleted.
+                - Only the full identifier of the instance will be returned.
+            returned: success
+            type: list
 '''
 
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