fix linter errors

roles/nginx/molecule/default/converge.yml

@@ -20,7 +20,7 @@
 
   roles:
     # using default NGINX verison
-    - role: genlab.nginx
+    - role: genlab.common.nginx
       site:
         confname: test-var
         content: |

roles/nginx/molecule/default/verify.yml

@@ -43,30 +43,30 @@
         fail_msg: "NGINX service is not enabled."
 
     - name: "Get an HTTP response from the test site (single site deployment from a variable)"
-      register: response
+      register: nginx_response
       ansible.builtin.uri:
         url: http://localhost:80
         status_code: 200
         return_content: true
 
-    - name: "Check the response correctness"
+    - name: "Check the response correctness on port 80"
       vars:
-        message: "{{ response.content | trim }}"
+        message: "{{ nginx_response.content | trim }}"
       ansible.builtin.assert:
         that: message == 'Hello from ansible-nginx!'
         success_msg: "{{ message }}"
         fail_msg: "Unexpected response from the test site: '{{ message }}'"
 
     - name: "Get an HTTP response from the test site (site deployment from a dictionary)"
-      register: response
+      register: nginx_response
       ansible.builtin.uri:
         url: http://localhost:8080
         status_code: 200
         return_content: true
 
-    - name: "Check the response correctness"
+    - name: "Check the response correctness on port 8080"
       vars:
-        message: "{{ response.content | trim }}"
+        message: "{{ nginx_response.content | trim }}"
       ansible.builtin.assert:
         that: message == 'Hello from ansible-nginx!'
         success_msg: "{{ message }}"