rPackages: Disable stackprotector on aarch64-darwin

Some derivations, like `rPackages.KernSmooth`, fail to build on `aarch64-darwin` because `stackprotector` is enabled.

This is similar to the fix required to get R itself working on `aarch64-darwin`: https://github.com/NixOS/nixpkgs/pull/158992.

pkgs/development/r-modules/generic-builder.nix

@@ -10,6 +10,8 @@ stdenv.mkDerivation ({
   NIX_CFLAGS_COMPILE =
     lib.optionalString stdenv.isDarwin "-I${lib.getDev libcxx}/include/c++/v1";
 
+  hardeningDisable = lib.optionals (stdenv.isAarch64 && stdenv.isDarwin) [ "stackprotector" ];
+
   configurePhase = ''
     runHook preConfigure
     export R_LIBS_SITE="$R_LIBS_SITE''${R_LIBS_SITE:+:}$out/library"