Split test into stages

Author: UnderGreen

.github/workflows/centos.yml

@@ -15,6 +15,7 @@ jobs:
       matrix:
         molecule_distro: 
           - centos7
+          - centos8
         mongodb_version:
           - '4.2'
           - '4.0'
@@ -27,9 +28,11 @@ jobs:
         uses: actions/checkout@v2
       - name: Prepare tests
         run: pip install -r requirements.txt
-      - name: Run tests
-        run: |
-          molecule test
-          AUTH_STATE=enabled molecule test
-          molecule test -s cluster
-          AUTH_STATE=enabled molecule test -s cluster
+      - name: Run default test
+        run: molecule test
+      - name: Run default test with enabled authentication
+        run: AUTH_STATE=enabled molecule test
+      - name: Run cluster test
+        run: molecule test -s cluster
+      - name: Run cluster test with enabled authentication
+        run: AUTH_STATE=enabled molecule test -s cluster