project: resolve syntax-check[missing-file] for contrib playbook

Signed-off-by: Arthur Outhenin-Chalandre <[email protected]>

contrib/mitogen/mitogen.yml

@@ -1,6 +1,6 @@
 ---
 - name: Check ansible version
-  import_playbook: ansible_version.yml
+  import_playbook: kubernetes_sigs.kubespray.ansible_version
 
 - hosts: localhost
   strategy: linear