Adding note on CUDA 12 for Faster whisper

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 20.00000% with 8 lines in your changes missing coverage. Please review.

Project coverage is 82.30%. Comparing base (dc9121b) to head (8c6c072).

Files	Patch %	Lines
buzz/transcriber/recording_transcriber.py	0.00%	5 Missing :warning:
buzz/transcriber/whisper_file_transcriber.py	40.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #875 +/- ## ========================================== - Coverage 82.44% 82.30% -0.14% ========================================== Files 85 85 Lines 4591 4601 +10 ========================================== + Hits 3785 3787 +2 - Misses 806 814 +8 ``` | [Flag](https://app.codecov.io/gh/chidiwilliams/buzz/pull/875/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chidi+Williams) | Coverage Δ | | |---|---|---| | [Linux](https://app.codecov.io/gh/chidiwilliams/buzz/pull/875/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chidi+Williams) | `81.61% <20.00%> (-0.14%)` | :arrow_down: | | [macOS](https://app.codecov.io/gh/chidiwilliams/buzz/pull/875/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chidi+Williams) | `81.52% <10.00%> (-0.16%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chidi+Williams#carryforward-flags-in-the-pull-request-comment) to find out more.

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