Use github matrix builds

molecule/mirror-is-set/molecule.yml

@@ -4,15 +4,9 @@ dependency:
 driver:
   name: docker
 platforms:
-  - name: alma
+  - name: instance
-    image: docker.io/guisea/py-almalinux
+    image: docker.io/guisea/${MOLECULE_DISTRO:-centos8}:latest
     pre_build_image: true
-  - name: centos7
-    image: docker.io/pycontribs/centos:7
-    pre_build_image: true
-  - name: centos8
-    image: docker.io/pycontribs/centos:8
-    pre_build_image: true  
 provisioner:
   name: ansible
 verifier: