teleport: add tests

pkgs/servers/teleport/default.nix

@@ -6,6 +6,7 @@
 , protobuf
 , stdenv
 , xdg-utils
+, nixosTests
 
 , withRoleTester ? true
 }:
@@ -95,6 +96,8 @@ buildGo117Module rec {
     $out/bin/teleport version | grep ${version} > /dev/null
   '';
 
+  passthru.tests = nixosTests.teleport;
+
   meta = with lib; {
     description = "Certificate authority and access plane for SSH, Kubernetes, web applications, and databases";
     homepage = "https://goteleport.com/";