2020-04-08 Version 12.16.2 'Erbium' (LTS)

Notable changes:

doc:
  * add ronag to collaborators (Robert Nagy) [#31498](https://github.com/nodejs/node/pull/31498)
  * add GeoffreyBooth to collaborators (Geoffrey Booth) [#31306](https://github.com/nodejs/node/pull/31306)
deps:
  * upgrade npm to 6.13.6 (Ruy Adorno) [#31304](https://github.com/nodejs/node/pull/31304)
  * update openssl to 1.1.1e (Hassaan Pasha) [#32328](https://github.com/nodejs/node/pull/32328)