Import of x509 database MySQL schema fails

[Donien]

When trying to import the MySQL database schema for the x509 module as laid out by the docs, the import fails due to the wrong variable name being referenced (schema_path instead of schema_path_mysql).

Reproduce

Snippet:

vars:
  ...
  icingaweb2_modules:
    x509:
      source: package
      enabled: true
      config:
        backend:
          resource: "x509_db"
      database:
        import_schema: true
        type: mysql
        user: "x509"
        password: "pwd"

---

Side note:
The role also fails at a ansible.builtin.fail task (if missing a needed variable). But ironically it fails due to the wrong module argument being passed (fail_msg instead of msg).
Thus the intended fail message is never seen.