teams: create the Xen Project Hypervisor Team

Co-authored-by: Fernando Rodrigues <alpha@sigmasquadron.net>
Co-authored-by: Hongbo <hehongbo@mail.com>
Co-authored-by: Rane <rane+nix@junkyard.systems>
Co-authored-by: Yaroslav Bolyukin <iam@lach.pw>

maintainers/team-list.nix

@@ -1022,6 +1022,19 @@ with lib.maintainers;
     shortName = "WDZ GmbH";
   };
 
+  xen = {
+    members = [
+      hehongbo
+      lach
+      rane
+      sigmasquadron
+    ];
+    scope = "Maintain the Xen Project Hypervisor and the related tooling ecosystem.";
+    shortName = "Xen Project Hypervisor";
+    enableFeatureFreezePing = true;
+    githubTeams = [ "xen-project" ];
+  };
+
   xfce = {
     members = [
       bobby285271