fix: Prevent conflict between parallel makers electron#3519

Author: lockiechen

packages/maker/dmg/test/MakerDMG_spec.ts

@@ -67,7 +67,7 @@ describe('MakerDMG', () => {
     const opts = eidStub.firstCall.args[0];
     expect(opts).to.deep.equal({
       overwrite: true,
-      name: appName,
+      name: `${appName}_${targetArch}`,
       appPath: path.resolve(`${dir}/My Test App.app`),
       out: path.resolve(`${dir.substr(0, dir.length - 4)}/make`),
     });