fix: add missing !unsafe

Newer versions of Ansible attempt to evaluate the variables inside of `github_registry` dict fail on `passwords` due to `${{ }}` this means the variable `share` is never set.

Author: jackhodgkiss

tests/inventory/host_vars/reference.yml

@@ -16,7 +16,7 @@ github_runs_on:
 github_registry:
   url: pulp.infra.os.example.cloud
   username: admin
-  password: ${{ secrets.REGISTRY_PASSWORD }}
+  password: !unsafe ${{ secrets.REGISTRY_PASSWORD }}
   share: true
 
 github_kayobe_arguments: