🐛 Fix bless on arm64 platform (#205)

Author: cybergrind

lib/appdmg.js

@@ -396,10 +396,13 @@ module.exports = exports = function (options) {
 
   pipeline.addStep('Blessing image', function (next) {
     const args = [
-      '--folder', global.temporaryMountPath,
-      '--openfolder', global.temporaryMountPath
+      '--folder', global.temporaryMountPath
     ]
 
+    if (os.arch() !== 'arm64') {
+      args.push('--openfolder', global.temporaryMountPath)
+    }
+
     util.sh('bless', args, next)
   })