[docker/requirements] pin down redis

9 jobs for branch/default in 4 minutes and 34 seconds (queued for 9 seconds)
Name Stage Failure
black Lint
would reformat test/test_intra.py

Oh no! 💥 💔 💥
1 file would be reformatted, 18 files would be left unchanged.
ERROR: InvocationError for command /builds/cubicweb/cubes/intranet/.tox/black/bin/black --check . (exited with code 1)
___________________________________ summary ____________________________________
ERROR: black: commands failed
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1