gst_all_1.gst-plugins-rs: use lld on Darwin

ld64 is failing to link these plugins with the following error. lld does not have this problem and can link this plugin successfully.

    section __TEXT,__text reloc 18: symbol index out of range

pkgs/development/libraries/gstreamer/rs/default.nix

@@ -11,6 +11,7 @@
 , rustc
 , cargo
 , cargo-c
+, lld
 , nasm
 , gstreamer
 , gst-plugins-base
@@ -199,10 +200,14 @@ stdenv.mkDerivation (finalAttrs: {
     cargo
     cargo-c'
     nasm
+  ] ++ lib.optionals stdenv.isDarwin [
+    lld
   ] ++ lib.optionals enableDocumentation [
     hotdoc
   ];
 
+  env = lib.optionalAttrs stdenv.isDarwin { NIX_CFLAGS_LINK = "-fuse-ld=lld"; };
+
   buildInputs = [
     gstreamer
     gst-plugins-base