docker tests on Jenkins: error while removing network

swh-docker-dev job on Jenkins is failing since April 20, 2021.

The error occurs when calling docker-compose down, network cannot be removed.

03:09:28 Removing docker_swh-objstorage_1               ... done
03:09:28 Removing network docker_default
03:09:28 error while removing network: network docker_default id a0145eb2f5b3f055bfafce7a88289346c4668f3a19f2544122267272cd96f7b3 has active endpoints
03:09:28 ERROR: InvocationError for command '/bin/bash tests/run_tests.sh' (exited with code 1)

This seems specific to the Jenkins environment as I cannot reproduce the error locally using same docker and docker-compose versions.

Docker version 20.10.5, build 55c4c88
docker-compose version 1.25.0, build unknown

---

Migrated from T3326 (view on Phabricator)