flutter: Apply multiple Darwin aarch64 fixes

Taken from: https://github.com/NixOS/nixpkgs/pull/286750#issuecomment-1935147584

pkgs/development/compilers/flutter/artifacts/overrides/darwin.nix

@@ -0,0 +1,15 @@
+{ darwin }:
+{
+  buildInputs ? [ ],
+  ...
+}:
+{
+  postPatch = ''
+    if [ "$pname" == "flutter-tools" ]; then
+      # Remove impure references to `arch` and use arm64 instead of arm64e.
+      substituteInPlace lib/src/ios/xcodeproj.dart \
+        --replace-fail /usr/bin/arch '${darwin.adv_cmds}/bin/arch' \
+        --replace-fail arm64e arm64
+    fi
+  '';
+}

pkgs/development/compilers/flutter/flutter-tools.nix

@@ -1,4 +1,6 @@
-{ systemPlatform
+{ lib
+, stdenv
+, systemPlatform
 , buildDartApplication
 , git
 , which
@@ -7,6 +9,7 @@
 , flutterSrc
 , patches ? [ ]
 , pubspecLock
+, darwin
 }:
 
 buildDartApplication.override { inherit dart; } rec {
@@ -21,7 +24,15 @@ buildDartApplication.override { inherit dart; } rec {
   inherit patches;
   # The given patches are made for the entire SDK source tree.
   prePatch = ''pushd "$NIX_BUILD_TOP/source"'';
-  postPatch = ''popd'';
+  postPatch = ''
+    popd
+  ''
+  # Remove impure references to `arch` and use arm64 instead of arm64e.
+  + lib.optionalString stdenv.isDarwin ''
+    substituteInPlace lib/src/ios/xcodeproj.dart \
+      --replace-fail /usr/bin/arch '${darwin.adv_cmds}/bin/arch' \
+      --replace-fail arm64e arm64
+  '';
 
   # When the JIT snapshot is being built, the application needs to run.
   # It attempts to generate configuration files, and relies on a few external