Log Message:
nodejs12: updated to 12.18.2

Version 12.18.2 'Erbium' (LTS)

Notable changes

deps: V8: backport
Fixes memory leak in PrototypeUsers::Add
src: use symbol to store AsyncWrap resource
Fixes reported memory leak

Version 12.18.1 'Erbium' (LTS)

Notable Changes

deps:
V8: cherry-pick
update to uvwasi 0.0.9
upgrade to libuv 1.38.0
upgrade npm to 6.14.5