make koha api configurable

3 jobs for master in 21 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Build
failed build #5302

00:00:21

 
  Test
skipped code_quality #5304
allowed to fail
skipped test #5303
 
Name Stage Failure
failed
build Build
Checking out 4d96a4b9 as master...
Skipping Git submodules setup
$ # Auto DevOps variables and functions # collapsed multi-line command
$ setup_docker
$ build
Logging to GitLab Container Registry with CI credentials...
WARNING! Using --password via the CLI is insecure. Use --password-stdin.
Error response from daemon: Get https://registry-1.docker.io/v2/: unauthorized: incorrect username or password
ERROR: Job failed: exit code 1