Ignore objects that end with a "/" and modernize codebase

.dockerignore

.gitlab-ci.yml

.pre-commit-config.yaml

Dockerfile

app/api/dependencies.py

app/api/endpoints/bucket_permissions.py

app/api/endpoints/buckets.py

app/api/endpoints/s3key.py

app/ceph/rgw.py

requirements-dev.txt

requirements.txt