Merge pull request #140 from ngrok/bob/fix-universal

explicit x86_64-apple-darwin target

Author: bobzilladev

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
             target: x86_64-apple-darwin
             if: true
             build: |
-              yarn build
+              yarn build --target x86_64-apple-darwin
               strip -x *.node
           - host: windows-latest
             build: yarn build