Fix gitlab-ci

1 job from master in 16 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
failed #5858
build-amd64

00:00:16

 
Name Stage Failure
failed
build-amd64 Test
   7b44e71..9dc2196  master     -> origin/master
Checking out 9dc2196d as master...
Skipping Git submodules setup
$ pip3 install --upgrade git+https://www.opencode.net/azubieta/appimagecraft.git
Collecting git+https://www.opencode.net/azubieta/appimagecraft.git
Cloning https://www.opencode.net/azubieta/appimagecraft.git to /tmp/pip-89p304o0-build
Error [Errno 2] No such file or directory: 'git': 'git' while executing command git clone -q https://www.opencode.net/azubieta/appimagecraft.git /tmp/pip-89p304o0-build
Cannot find command 'git'
ERROR: Job failed: exit code 1