Version 5.5.19

Use Puppet Agent version 5.5.19

This code is now automatically built into a Docker Container by the Docker Hub Automated Build service. You can
use this container directly in your Github Actions with:

on: [push]

jobs:
  puppet-parser-validate:

    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout
      uses: actions/checkout@v2

    - name: puppet-parser-validate
      uses: docker://irasnyd/[email protected]
      with:
        args: ./