Updating operating systems in metadata.json and tests

Added RHEL 9 and AlmaLinux 8

.github/workflows/test-install-matrix.yaml

@@ -46,8 +46,9 @@ jobs:
           - 2021.7.7
           - 2023.6.0
         image:
-          - centos-7
-          - almalinux-cloud/almalinux-8
+          # - centos-7
+          # - almalinux-cloud/almalinux-8
+          - RHEL-9
     steps:
       - name: "Checkout Source"
         uses: actions/checkout@v2

.github/workflows/test-upgrade-matrix.yaml

@@ -46,7 +46,8 @@ jobs:
         version_to_upgrade:
           - '2021.7.7'
         image:
-          - 'almalinux-cloud/almalinux-8'
+          # - 'almalinux-cloud/almalinux-8'
+          - 'RHEL-9'
         download_mode:
           - 'direct'
 

README.md

@@ -71,7 +71,14 @@ groups:
 
 * PEADM is compatible with Puppet Enterprise 2019.8.1 or newer versions.
 * To use PEADM, you must first [install Bolt](https://www.puppet.com/docs/bolt/latest/bolt_installing) version 3.17.0 or newer.
-* PEADM supports PE installations on the following operating systems: EL 7, EL 8, Ubuntu 18.04, or Ubuntu 20.04.
+* PEADM supports PE installations on the following operating systems:
+  - Amazon Linux 2
+  - AlmaLinux 8
+  - CentOS 7 and 8
+  - RHEL 7, 8 and 9
+  - SLES 12
+  - Ubuntu 18.04 and 20.04
+
 * To successfully convert your current PE installation to a PEADM-managed installation, ensure that the PE setting for editing classifier configuration data is enabled. This setting is enabled by default on new PE installations, but it could be disabled if the relevant configuration was removed from your global hiera.yaml file. See the [PE docs](https://www.puppet.com/docs/pe/latest/config_console.html#enable_console_configuration_data) for more information.
 
 ## Usage

metadata.json

@@ -52,11 +52,18 @@
         "2"
       ]
     },
+    {
+      "operatingsystem": "AlmaLinux",
+      "operatingsystemrelease": [
+        "8"
+      ]
+    },
     {
       "operatingsystem": "RedHat",
       "operatingsystemrelease": [
         "7",
-        "8"
+        "8",
+        "9"
       ]
     },
     {