Fix nvm url in Dockerfile

3 jobs for master in 8 minutes and 53 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Lint
passed #15182
lint

00:01:17

 
  Test Backend
passed #15183
test_backend

00:04:48

 
  Test Frontend
passed #15184
test_frontend_unit

00:02:47