npx.cmd missing from windows zips

[BethGriggs]

8.3.0 and 8.4.0 appear to not have the npx.cmd in their .zips. However, the .msi does have the npx command.

See https://nodejs.org/dist/v8.4.0/node-v8.4.0-win-x64.zip
or https://nodejs.org/dist/v8.3.0/node-v8.3.0-win-x64.zip

//cc @zkat as author of #14235

• Version: 8.3.0 / 8.4.0
• Platform: Win

[BethGriggs]

#15033 fixes this.

[bzoz]

Closed in b46d596