change node version to 14 for pipeline

2 jobs for feature/noJS-node12 in 34 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #32591
build

00:00:34

 
  Publish
skipped #32592
allowed to fail manual
publish
 
Name Stage Failure
failed
build Build
Successfully compiled 1 Sass file(s).

Done.
$ yarn build
yarn run v1.22.19
error Command "build" not found.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1