pulp_container SHOULD not disregard the base_path rules

[mdellweg]

Version
pulp_container: all of them
pulpcore: < 3.117

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
On pulpcore < 3.117 run:

pulp file repository create --name "test" --autopublish
pulp file distribution create --name breakme --repository test --base-path break/me
pulp file content upload --repository test --file LICENSE --relative-path LICENSE
curl http://localhost:8080/pulp/content/
curl http://localhost:8080/pulp/content/break/
curl http://localhost:8080/pulp/content/break/me/
curl http://localhost:8080/pulp/content/break/me/LICENSE

# --------

pulp container distribution create --name offender --base-path break
curl http://localhost:8080/pulp/content/break/me/LICENSE