www/node: Update 16.6.1 -> 16.6.2

https://nodejs.org/en/blog/release/v16.6.2/

This is a security release. See
https://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/

Adopt the patch from https://github.com/nodejs/node/pull/39739, since
Node.js does not build with a system installed c-ares without it.

Security: b092bd4f-1b16-11ec-9d9d-0022489ad614
MFH: 2021Q3
Sponsored by: Miles AS