Use Ruby YAML library to serialize Ansible examples (#196)

<!-- This change is generated by MagicModules. -->
/cc @rambleraptor

plugins/modules/gcp_compute_instance_template.py

@@ -437,24 +437,24 @@ EXAMPLES = '''
 
 - name: create a instance template
   gcp_compute_instance_template:
-      name: "test_object"
-      properties:
-        disks:
-        - auto_delete: true
-          boot: true
-          initialize_params:
-            source_image: projects/ubuntu-os-cloud/global/images/family/ubuntu-1604-lts
-        machine_type: n1-standard-1
-        network_interfaces:
-        - network: "{{ network }}"
-          access_configs:
-          - name: test-config
-            type: ONE_TO_ONE_NAT
-            nat_ip: "{{ address }}"
-      project: "test_project"
-      auth_kind: "serviceaccount"
-      service_account_file: "/tmp/auth.pem"
-      state: present
+    name: test_object
+    properties:
+      disks:
+      - auto_delete: 'true'
+        boot: 'true'
+        initialize_params:
+          source_image: projects/ubuntu-os-cloud/global/images/family/ubuntu-1604-lts
+      machine_type: n1-standard-1
+      network_interfaces:
+      - network: "{{ network }}"
+        access_configs:
+        - name: test-config
+          type: ONE_TO_ONE_NAT
+          nat_ip: "{{ address }}"
+    project: test_project
+    auth_kind: serviceaccount
+    service_account_file: "/tmp/auth.pem"
+    state: present
 '''
 
 RETURN = '''