Use NodeJS 14

[treydock]

Fixes #114

[johrstrom]

I can't tell if this has logic to remove node 12. puppet's much better at keeping state that ansible, so maybe the 14 update replaces 12 outright?

I ask because I'm upgrading the ansible role for the same and I want to catch the case where 12 is installed and needs to be removed before installing 14 (IDK if yum and apt will take care of the removal automatically).

[treydock]

This module won't remove unused packages. For RHEL7 the NodeJS packages for 14 install parallel to 12, and that's only OS where there would be any cleanup but historically have left cleanup to admins be done manually. For DNF based OSes, the nodejs:14 module will replace packages in nodejs:12 module via DNF commands executed by Puppet when switch versions (same steps in OSC/ood-documentation#730). For Ubuntu it's a straight upgrade during update of OnDemand so no old packages left behind.