Python-epo-ops-client

What's Changed

- Configure HTTP client to use a network timeout of 10 seconds
- Verify support for Python 3.10, 3.11, and 3.12
- Project: Use `versioningit` for versioning
- Tests: Remove dependency on Apiary Mock Server API
- Documentation: Corrected link to OPS guide (pdf) within README.
Thanks, mattkeanny.

New Contributors
* dependabot made their first contribution in https://github.com/ip-tools/python-epo-ops-client/pull/73
* mattkeanny made their first contribution in https://github.com/ip-tools/python-epo-ops-client/pull/77

**Full Changelog**: https://github.com/ip-tools/python-epo-ops-client/compare/v4.0.0...v4.1.0

_Note that this release has been published on Sep 19, 2021 already._

What's Changed
* README: update links to the Open Patent Service (OPS) by fe60 in https://github.com/ip-tools/python-epo-ops-client/pull/45
* Fix negative delays in sqlite middleware by BeneCollyridam in https://github.com/ip-tools/python-epo-ops-client/pull/49
* Upgrade dependencies
* Drop support for Python 2.7 and Python 3.5
* Add support for Python 3.9

New Contributors
* fe60 made their first contribution in https://github.com/ip-tools/python-epo-ops-client/pull/45
* BeneCollyridam made their first contribution in https://github.com/ip-tools/python-epo-ops-client/pull/49

**Full Changelog**: https://github.com/ip-tools/python-epo-ops-client/compare/v3.1.3...v4.0.0