Auto merge of #29606 - Mifom:update-nix-shell, r=jdm

Update shell.nix

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After https://github.com/NixOS/nixpkgs/pull/207938 was merged the option `pkgs.xlibsWrapper` was removed. This PR replacing it with `xorg.libX11` as this is enouth to build and test in `nix-shell` environment.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors

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- [X] These changes do not require tests because PR updates nix build environment.

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etc/shell.nix

@@ -9,7 +9,8 @@ clangStdenv.mkDerivation rec {
   buildInputs = [
     # Native dependencies
     fontconfig freetype openssl libunwind
-    xorg.libxcb xlibsWrapper
+    xorg.libxcb
+    xorg.libX11
 
     gst_all_1.gstreamer
     gst_all_1.gst-plugins-base