feat: make testing stage look pretty

.gitlab/testing.yaml

@@ -1,4 +1,5 @@
 ---
+
 variables:
   DEBIAN_FRONTEND: "noninteractive"
   DOCKER_HOST: "tcp://docker:2375"
@@ -11,16 +12,19 @@ molecule:
   stage: "testing"
   image: "docker:latest"
   script:
-    - "apk add \
-       --no-cache \
+
+    # install python, pip and git
+    - "apk add --no-cache \
        python3 \
        py3-pip \
        git"
-    - "pip3 install \
-       --break-system-packages \
-       --no-cache-dir \
+
+    # pip install ansible and molecule
+    - "pip3 install --break-system-packages --no-cache-dir \
        ansible-core \
        ansible-lint \
        molecule \
        molecule-plugins[docker]"
+
+    # run molecule
     - "molecule test"