Fix nvm url in Dockerfile

3 jobs for master in 9 minutes and 29 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Lint
passed #15186
lint

00:01:23

 
  Test Backend
passed #15187
test_backend

00:05:05

 
  Test Frontend
passed #15188
test_frontend_unit

00:03:00