deps,npm: float node-gyp patch on npm

This small change makes addon test build successfully with LLVM
10.0.0 and above. This will be fixed in npm source when node-gyp
is updated to 3.6.3 or above.

PR-URL: #21239
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

Author: Trott