Test puppetserver on Debian 11

These days the package is delivered, so it should be verified. It bumps
the versions to ones that are available on all platforms. 7.6.0 is the
oldest one on Debian Bullseye.

Author: ekohl

spec/acceptance/puppetserver_upgrade_spec.rb

@@ -16,8 +16,8 @@
 
     case ENV['BEAKER_PUPPET_COLLECTION']
     when 'puppet7'
-      from_version = '7.0.0'
-      to_version = '7.2.0'
+      from_version = '7.6.0'
+      to_version = '7.13.0'
     else
       raise 'Unsupported Puppet collection'
     end

spec/support/acceptance/puppetserver.rb

@@ -4,7 +4,5 @@ def unsupported_puppetserver
     true
   when 'Fedora'
     true
-  when 'Debian'
-    host_inventory['facter']['os']['release']['major'] == '11'
   end
 end