feat(templates/bevy): update nixpkgs to use the latest darwin_sdk

templates/bevy/flake.nix

@@ -50,6 +50,7 @@
             ])
             # use rust-analyzer-nightly for better type inference
             rust-analyzer-nightly
+            cargo-watch
           ]
           # https://github.com/bevyengine/bevy/blob/v0.14.2/docs/linux_dependencies.md#nix
           ++ (lib.optionals pkgs.stdenv.isLinux [
@@ -66,40 +67,9 @@
           # https://discourse.nixos.org/t/develop-shell-environment-setup-for-macos/11399
           # https://github.com/NixOS/nixpkgs/blob/nixos-unstable-small/pkgs/os-specific/darwin/apple-sdk/frameworks.nix
           ++ (pkgs.lib.optionals pkgs.stdenv.isDarwin [
-            # Additional darwin specific inputs can be set here
+            apple-sdk_15
-            libiconv
-            darwin.apple_sdk.frameworks.Security
-            darwin.apple_sdk.frameworks.ApplicationServices
-            darwin.apple_sdk.frameworks.CoreVideo
-            darwin.apple_sdk.frameworks.Carbon
-            darwin.apple_sdk.frameworks.AppKit
           ]);
         LD_LIBRARY_PATH = lib.makeLibraryPath buildInputs;
-        COREAUDIO_SDK_PATH =
-          pkgs.lib.optionals
-          pkgs.stdenv.isDarwin
-          # The coreaudio-sys crate is configured to look for things in whatever the
-          # output of `xcrun --sdk macosx --show-sdk-path` is. However, this does not
-          # always contain the right frameworks, and it uses system versions instead of
-          # what we control via Nix. Instead of having to run a lot of extra scripts
-          # to set our systems up to build, we can just create a SDK directory with
-          # the same layout as the `MacOSX{version}.sdk` that XCode produces.
-          (pkgs.symlinkJoin {
-            name = "sdk";
-            paths = with pkgs.darwin.apple_sdk.frameworks; [
-              AudioToolbox
-              AudioUnit
-              CoreAudio
-              CoreAudioTypes
-              CoreFoundation
-              CoreMIDI
-              OpenAL
-            ];
-            postBuild = ''
-              mkdir $out/System
-              mv $out/Library $out/System
-            '';
-          });
       };
     });
   };