docs: remove __MACOSX folder from v3 docs archive

[noahmulfinger]

I found the v3 docs archive contains a __MACOSX folder probably because it was initially zipped up on a Mac. This file isn't necessary and it doesn't always work well with some of the Node scripts involved in building the v3 doc.

I removed the folder from the zip file with zip -d v3-archive.zip __MACOSX/\*.

You can verify the zip output is still the same by:

1. Downloading these two files:
   • main: https://github.com/Esri/arcgis-rest-js/raw/main/docs/v3-archive.zip
   • this branch: https://github.com/Esri/arcgis-rest-js/raw/remove-macosx-folder/docs/v3-archive.zip
2. Running unzip -d main FIRST_DOWNLOAD_PATH && unzip -d remove-macosx-folder SECOND_DOWNLOAD_PATH
3. Running diff -r main remove-macosx-folder and it should output Only in main: __MACOSX.