Merge pull request #546 from h0tw1r3/metadata-ol8

Author: jordanbreen28

exe/matrix_from_metadata_v2

@@ -53,6 +53,7 @@ DOCKER_PLATFORMS = {
   'Debian-12' => 'litmusimage/debian:12',
   'OracleLinux-6' => 'litmusimage/oraclelinux:6',
   'OracleLinux-7' => 'litmusimage/oraclelinux:7',
+  'OracleLinux-8' => 'litmusimage/oraclelinux:8',
   'Scientific-6' => 'litmusimage/scientificlinux:6',
   'Scientific-7' => 'litmusimage/scientificlinux:7',
   # 'Ubuntu-14.04' => 'litmusimage/ubuntu:14.04', Removing from testing: https://puppet.com/docs/pe/2021.0/supported_operating_systems.html