Comment 1 for bug 1978131

It seems puppetlabs-apache introduced type validation and the hieradata passed to api_port does not
match with the any of the expected types.

https://github.com/puppetlabs/puppetlabs-apache/commit/ae56cc9a6dbcd3846ccbcb9f8a7b9302d8b2a996

We should use only number or string, otherwise we need to fix puppetlabs-apache to accept that "mixed" type usage.