Transcription streaming & Pytest suite release (0.3.3)

• Introduced --stt-streaming-models argument and environment variable
  • This enables new streaming transcription logic outlined by wyoming 1.7.0
  • The old --stt-models will not automatically stream unless you manually specify this
• Quality Assurance Improvements
  • Introduced a new GitHub Action workflow for automated testing with pytest.
  • Added comprehensive unit tests for core modules (compatibility, const, handler, utilities, and init).
• Updated dependencies
• Updated docstrings in the code

Full Changelog: v0.3.2...v0.3.3