Remove and prevent trailing whitespace (#10199)

* Remove trailing whitespace.

* Add no-trailing-whitespace extra test.

* Re-add needed trailing whitespace.

* Remove one more trailing whitespace.

tests/integration/targets/keycloak_role/vars/main.yml

@@ -17,10 +17,10 @@ keycloak_role_name: test
 keycloak_role_description: test
 keycloak_role_composite: true
 keycloak_role_composites:
-  - name: view-clients 
+  - name: view-clients
     client_id: "realm-management"
     state: present
-  - name: query-clients 
+  - name: query-clients
     client_id: "realm-management"
     state: present
   - name: offline_access
@@ -31,10 +31,10 @@ keycloak_client_description: This is a client for testing purpose
 role_state: present
 
 keycloak_role_composites_with_absent:
-  - name: view-clients 
+  - name: view-clients
     client_id: "realm-management"
     state: present
-  - name: query-clients 
+  - name: query-clients
     client_id: "realm-management"
     state: present
   - name: offline_access