Security updates for all active release lines, 30 July 2021

[Daniel Bevenius]

Updates are now available for v16.x, v14.x, and v12.x Node.js release lines.

We normally like to give advance notice and provide releases in which the only  changes are security fixes, but since this vulnerability was already public we felt it was more important to get this fix out fast in releases that were  already planned.

For more information see: https://nodejs.org/en/blog/vulnerability/july-2021-security-releases-2