Fix a typo in the CI script

1 job for master in 28 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #128
build

00:00:28

 
Name Stage Failure
failed
build Build
Fetching changes...
HEAD is now at 063eaa3 Fix a typo in the CI script
From https://forge.tedomum.net/tedomum/odoo
063eaa3..2afe307 master -> origin/master
Checking out 2afe3072 as master...
Skipping Git submodules setup
$ docker build --build-arg ODOO_VERSION=9.0 --tag $CI_REGISTRY_IMAGE:9.0 .
unable to prepare context: unable to evaluate symlinks in Dockerfile path: lstat /builds/tedomum/odoo/Dockerfile: no such file or directory
ERROR: Job failed: exit code 1