Bump httpx

Import unresolved exception classes in gitlab client

Install requires with package, not just version

Bump httpx version in setup.py

Bump httpx and respx

Merge pull request #5 from vishes-shell/chore/client-dry-docstrings

chore: provide docstrings for gitlab client implementations

async version of v2.0.1

chore: revert to 2.0.1

I've misread the tag

Merge pull request python-gitlab#1001 from python-gitlab/feat/keyset-…

…pagination

Feat/keyset pagination

chore: bump version to 1.15.0