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747efa16 - community: fix CPU support for FasterWhisperParser (implicit compute type for WhisperModel) (#30263)

community: fix CPU support for FasterWhisperParser (implicit compute type for WhisperModel) (#30263) FasterWhisperParser fails on a machine without an NVIDIA GPU: "Requested float16 compute type, but the target device or backend do not support efficient float16 computation." This problem arises because the WhisperModel is called with compute_type="float16", which works only for NVIDIA GPU. According to the [CTranslate2 docs](https://opennmt.net/CTranslate2/quantization.html#bit-floating-points-float16) float16 is supported only on NVIDIA GPUs. Removing the compute_type parameter solves the problem for CPUs. According to the [CTranslate2 docs](https://opennmt.net/CTranslate2/quantization.html#quantize-on-model-loading) setting compute_type to "default" (standard when omitting the parameter) uses the original compute type of the model or performs implicit conversion for the specific computation device (GPU or CPU). I suggest to remove compute_type="float16". @hulitaitai you are the original author of the FasterWhisperParser - is there a reason for setting the parameter to float16? Thanks for reviewing the PR! Co-authored-by: qonnop <qonnop@users.noreply.github.com>