nodejs: updated to 14.17.0

Version 14.17.0 'Fermium' (LTS)

Notable Changes

Diagnostics channel (experimental module)
UUID support in the crypto module
Experimental support for AbortController and AbortSignal

doc:
revoke deprecation of legacy url, change status to legacy (James M Snell)
add legacy status to stability index (James M Snell)
upgrade stability status of report API (Gireesh Punathil)

deps:
V8: Backport various patches for Apple Silicon support (BoHong Li)
update ICU to 68.1 (Micha谷l Zasso)
upgrade to libuv 1.41.0 (Colin Ihrig)

http:
add http.ClientRequest.getRawHeaderNames() (simov)
report request start and end with diagnostics_channel (Stephen Belanger)

util:
add getSystemErrorMap() impl (eladkeyshawn)

(adam)