Fix nvm url in Dockerfile

3 jobs for master in 9 minutes and 5 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Lint
passed #15173
lint

00:01:18

 
  Test Backend
passed #15175
test_backend

00:04:58

 
  Test Frontend
passed #15176
test_frontend_unit

00:02:48