chore(main): release 7.4.0 (#729)

:robot: I have created a release *beep* *boop*
---


##
[7.4.0](https://github.com/deepgram/deepgram-python-sdk/compare/v7.3.1...v7.4.0)
(2026-06-26)


### Features

* **regen:** v2 language_hints, profanity filter, word timings,
diarize_model
([#730](https://github.com/deepgram/deepgram-python-sdk/issues/730))
([da6b7ba](https://github.com/deepgram/deepgram-python-sdk/commit/da6b7ba8b5583a9dcddfd3950b4abd4d2645c9fa))


### Bug Fixes

* redact Authorization header from websockets DEBUG logs
([#731](https://github.com/deepgram/deepgram-python-sdk/issues/731))
([029d877](https://github.com/deepgram/deepgram-python-sdk/commit/029d8771a2957fd5ffbc3c50fb40550098fcfad3))


### Documentation

* improve contributor onboarding and setup instructions
([#718](https://github.com/deepgram/deepgram-python-sdk/issues/718))
([3f7398a](https://github.com/deepgram/deepgram-python-sdk/commit/3f7398a9782a1efcfd99408f1392907aa4e68cf3))

---
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