Add a migration for foreman_proxy's httpboot
The httpboot option changed1 from Optional[Boolean] to Boolean. Thatrequires a migration if the value was undef.
[1]: https://github.com/theforeman/puppet-foreman_proxy/commit/e4b7763e45fecc5fbaa5d88cc066906d6caf7bf7
Add a migration for foreman_proxy's httpboot
The httpboot option changed1 from Optional[Boolean] to Boolean. That
requires a migration if the value was undef.
[1]: https://github.com/theforeman/puppet-foreman_proxy/commit/e4b7763e45fecc5fbaa5d88cc066906d6caf7bf7