(maint) test: support debian 12 in acceptance tests

cherry-pick of 6dfc2b4

acceptance/helper.rb

@@ -296,6 +296,10 @@ def is_bullseye()
     return test_config[:os_families].has_key? 'debian11-64-1'
   end
 
+  def is_bookworm()
+    return test_config[:os_families].has_key? 'debian12-64-1'
+  end
+
   def is_el7()
     return test_config[:os_families].has_key?('redhat7-64-1') ||
            test_config[:os_families].has_key?('centos7-64-1')
@@ -343,8 +347,8 @@ def puppet_repo_version(platform_version, install_type, nightly)
       # always use the non-nightly version
       platform_version
     when :upgrade_oldest
-      # Debian 11, Ubuntu 22, and RHEL 9 only have builds starting in the 7 series
-      if is_bullseye || is_jammy || is_el9
+      # Debian 11 & 12, Ubuntu 22, and RHEL 9 only have builds starting in the 7 series
+      if is_bullseye || is_jammy || is_el9 || is_bookworm
         :puppet7
       else
         :puppet6
@@ -371,6 +375,8 @@ def oldest_supported
       '6.12.0'
     elsif is_jammy
       '7.14.0'
+    elsif is_bookworm
+      '7.20.0'
     else
       '6.0.0'
     end
@@ -444,6 +450,8 @@ def get_package_version(host, version = nil)
       "#{version}buster"
     elsif host['platform'].include?('debian-11')
       "#{version}bullseye"
+    elsif host['platform'].include?('debian-12')
+      "#{version}bookworm"
     else
       raise ArgumentError, "Unsupported platform: '#{host['platform']}'"
     end

acceptance/setup/pre_suite/05_clear_firewalls.rb

@@ -1,7 +1,7 @@
 unless (test_config[:skip_presuite_provisioning])
   step "Flushing iptables chains" do
     hosts.each do |host|
-      on host, 'apt-get install -y iptables' if is_bullseye
+      on host, 'apt-get install -y iptables' if (is_bullseye || is_bookworm)
       on host, "iptables -F INPUT -t filter"
       on host, "iptables -F FORWARD -t filter"
     end