Change Log:
- Update required httpx version for v0.24 (https://github.com/aiudirog/ThriftPy2-HTTPX-Client/commit/5ac1aef092fcaac719f6848c21a9eb87d8a86bb1)
- Drop support for Python 3.6 and declare support for 3.11 (https://github.com/aiudirog/ThriftPy2-HTTPX-Client/commit/5d31c34fa10bda11c6de9769d4704f21b452ba80)