Use variables instead of strings

9 jobs for 1505-improve-tagging-of-released-docker-images in 13 minutes and 21 seconds (queued for 14 seconds)
Name Stage Failure
failed
check_api_dependencies Deps
django-auth-ldap        2.4.0    3.0.0   wheel
Faker 8.9.1 8.10.3 wheel
idna 2.10 3.2 wheel
requests 2.25.1 2.26.0 wheel
requests-http-signature 0.0.3 0.2.0 wheel
s3transfer 0.4.2 0.5.0 wheel
setuptools 57.1.0 57.4.0 wheel
Twisted 20.3.0 21.7.0 wheel
Cleaning up file based variables
ERROR: Job failed: exit code 1