package/nodejs: security bump to version 12.19.1

package/nodejs: security bump to version 12.19.1

Fixes the following security issue:

- CVE-2020-8277: Denial of Service through DNS request (High).  A Node.js
  application that allows an attacker to trigger a DNS request for a host of
  their choice could trigger a Denial of Service by getting the application
  to resolve a DNS record with a larger number of responses.

https://nodejs.org/en/blog/release/v12.19.1/

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>