rsync: skip chgrp test

This test fails when built in a chroot store.

Signed-off-by: Lisanna Dettwyler <lisanna.dettwyler@gmail.com>
(cherry picked from commit 9d229c780e)
(cherry picked from commit 87aae16c78154ea23b8021d3c38538b8288de95b)

pkgs/by-name/rs/rsync/package.nix

@@ -86,6 +86,11 @@ stdenv.mkDerivation (finalAttrs: {
 
   passthru.tests = { inherit (nixosTests) rsyncd; };
 
+  # Test fails when built in a chroot store
+  preCheck = ''
+    rm testsuite/chgrp.test
+  '';
+
   doCheck = true;
 
   __darwinAllowLocalNetworking = true;