Update CI (i.e., remove trigger, use intermediate storage)
Actually, the CI/CD workflow is very cumbersome.
There is a lot to improve but this MR contains minor relevant changes which may be integrated quickly.
- this repository don't have to trigger the deployment pipeline located in another repository (focus is made on publishing the docker image)
- intermediate docker image are stored as test- (for being used later in test stage). Gitlab project cleanup policy is configured to regularly remove
test.+
images