Pinning ansible-lint to version 4.2.0 (#23)

Closes #23 (closed)

.gitlab-ci.yml

@@ -10,7 +10,7 @@ lint:
 
   script:
     # Install ansible-lint tool
-    - pip3 install ansible-lint
+    - pip3 install ansible-lint==4.2.0
 
     # Run ansible-lint over all role directories in the roles/ directory.
     - >-
@@ -18,7 +18,7 @@ lint:
       xargs -I ROLE -t -0 -n1 ansible-lint ROLE
 
   variables:
-    # The version of the Ansible image we run asible-lint within. The exact
+    # The version of the Ansible image we run ansible-lint within. The exact
     # version of Ansible which is installed in the image should not affect the
     # output of ansible-lint so it is safe to set this to the latest version.
     ANSIBLE_VERSION: "2.7"