Don't use libvirt in ci-runner

modules/ci-runner/default.nix

@@ -23,11 +23,10 @@ in
       path = [
         pkgs.git
         pkgs.nix
-        pkgs.libvirt
       ];
 
       wantedBy = [ "multi-user.target" ];
-      after = [ "network.target" "libvirtd.service" ];
+      after = [ "network.target" ];
 
       script = ''${pkgs.drone-runner-exec}/bin/drone-runner-exec daemon /run/agenix/drone-runner-exec-config'';
     };