Fix CentOS 9 support in metadata.json

Author: evgeni

metadata.json

@@ -52,7 +52,7 @@
       "operatingsystemrelease": [
         "7",
         "8",
-        "8"
+        "9"
       ]
     },
     {

spec/acceptance/puppetserver_upgrade_spec.rb

@@ -16,7 +16,12 @@
 
     case ENV['BEAKER_PUPPET_COLLECTION']
     when 'puppet7'
-      from_version = '7.6.0'
+      from_version =
+        if fact('os.family') == 'RedHat' && fact('os.release.major') == '9'
+          '7.13.0'
+        else
+          '7.6.0'
+        end
       to_version = '7.13.0'
     else
       raise 'Unsupported Puppet collection'