Remove VERSION from libraries.yml

Problem/Motivation

The "version: VERSION" lines in the libraries.yml file make it so the libraries' files get cached per Drupal core version, which makes no sense at all.
This can cause fixed bugs to be unresolved when updating this module separate from a Drupal core update.

Proposed resolution

Remove all "version: VERSION" lines from the libraries.yml file, they are not needed. Caching these static files should not be needed whatsoever, but if for some reason this is wanted behaviour, then the version should at least be set to something relevant to the library definition in stead of a Drupal core version.

Patch incoming.