fix(maker-dmg): make macos-alias build on Node.js 22

[erickzhao]

I was trying to install Forge dependencies on Node 22 and node-gyp rebuild was failing with the following error:

In file included from ../src/volume.cc:2:
../../nan/nan.h:2548:8: error: no matching member function for call to 'SetAccessor'
  tpl->SetAccessor(
  ~~~~~^~~~~~~~~~~
/Users/erick.zhao/Library/Caches/node-gyp/22.13.0/include/node/v8-template.h:1055:8: note: candidate function not viable: no known conversion from 'v8::AccessControl' to 'PropertyAttribute' for 5th argument
  void SetAccessor(
       ^
/Users/erick.zhao/Library/Caches/node-gyp/22.13.0/include/node/v8-template.h:1049:8: note: candidate function not viable: no known conversion from 'imp::NativeGetter' (aka 'void (*)(v8::Local<v8::Name>, const v8::PropertyCallbackInfo<v8::Value> &)') to 'AccessorGetterCallback' (aka 'void (*)(Local<String>, const PropertyCallbackInfo<Value> &)') for 2nd argument
  void SetAccessor(
       ^
In file included from ../src/volume.cc:2:
../../nan/nan.h:2594:8: error: no matching member function for call to 'SetAccessor'
  tpl->SetAccessor(
  ~~~~~^~~~~~~~~~~
/Users/erick.zhao/Library/Caches/node-gyp/22.13.0/include/node/v8-template.h:1055:8: note: candidate function not viable: no known conversion from 'v8::AccessControl' to 'PropertyAttribute' for 5th argument
  void SetAccessor(
       ^
/Users/erick.zhao/Library/Caches/node-gyp/22.13.0/include/node/v8-template.h:1049:8: note: candidate function not viable: no known conversion from 'imp::NativeGetter' (aka 'void (*)(v8::Local<v8::Name>, const v8::PropertyCallbackInfo<v8::Value> &)') to 'AccessorGetterCallback' (aka 'void (*)(Local<String>, const PropertyCallbackInfo<Value> &)') for 2nd argument
  void SetAccessor(
       ^
2 errors generated.
make: *** [Release/obj.target/volume/src/volume.o] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/Users/erick.zhao/Developer/electron/forge/node_modules/node-gyp/lib/build.js:203:23)
gyp ERR! stack     at ChildProcess.emit (node:events:524:28)
gyp ERR! stack     at ChildProcess._handle.onexit (node:internal/child_process:293:12)
gyp ERR! System Darwin 24.2.0
gyp ERR! command "/Users/erick.zhao/.nvm/versions/node/v22.13.0/bin/node" "/Users/erick.zhao/Developer/electron/forge/node_modules/.bin/node-gyp" "rebuild"
gyp ERR! cwd /Users/erick.zhao/Developer/electron/forge/node_modules/macos-alias

I saw this was referring to nodejs/nan#936, so I upgraded the nan and macos-alias dependencies and the problem went away.

Note that we don't actually need macos-alias as a direct optionalDependency so I removed that from the package.json (it's included via electron-installer-dmg/appdmg/ds-store/macos-alias).