Convert alternatives runtimes molecule to ansible verifier

roles/container-engine/gvisor/molecule/default/verify.yml

@@ -0,0 +1,19 @@
+---
+- name: Test gvisor
+  hosts: all
+  gather_facts: false
+  tasks:
+  - name: Get kubespray defaults
+    import_role:
+      name: ../../../../../kubespray_defaults
+  - name: Test version
+    command: "{{ bin_dir }}/runsc --version"
+    register: runsc_version
+    failed_when: >
+      runsc_version is failed or
+      'runsc version' not in runsc_version.stdout
+
+- name: Test run container
+  import_playbook: ../../../molecule/test_runtime.yml
+  vars:
+    container_runtime: runsc