Support puppet-epel 5.0.0 dependency

[rridge532]

Affected Puppet, Ruby, OS and module versions/distributions

• Puppet: 7.x+
• Ruby: N/A
• Distribution: N/A
• Module version: puppet-python 7.0.0, epel 5.0.0

How to reproduce (e.g Puppet code you use)

fixtures:
  forge_modules:
    stdlib:
      repo: "puppetlabs/stdlib"
      ref: "6.6.0"
    python:
      repo: "puppet/python"
      ref: "7.0.0"
    epel:
      repo: "puppet/epel"
      ref: "5.0.0"

What are you seeing

puppet-python currently only supports puppet-epel <5.0.0 but epel was updated to version 5.0.0 recently.

What behaviour did you expect instead

Support puppet-epel <6.0.0

Output log

Any additional information you'd like to impart

This versions only breaking change appears to be dropping support for Puppet 6 which was already dropped in puppet-python with 7.0.0 so should be fairly easy