Update .gitlab-ci.yml

5 jobs for master in 14 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Prepare
passed #48379
linux
mat_common

00:00:07

failed #48381
linux
mat_irrklang

00:00:07

passed #48380
linux
mat_submodules

00:00:11

passed #48382
linux
mat_windows

00:00:13

 
  Build
skipped #48383
vs
exec_windows
 
Name Stage Failure
failed
mat_irrklang Prepare
remote: 
remote: ========================================================================
remote:
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Cleaning up file based variables
ERROR: Job failed: exit code 1