feat(llama.cpp): guess model defaults from file #3697

Job	Run time
tests-diffusers	2m 24s
tests-diffusers	2m 24s
tests-parler-tts	3m 8s
tests-parler-tts	3m 8s
tests-coqui	2m 35s
tests-coqui	2m 23s
tests-openvoice	3m 27s
tests-openvoice	3m 27s
tests-rerankers	2m 42s
tests-rerankers	2m 42s
tests-sentencetransformers	2m 20s
tests-sentencetransformers	2m 20s
tests-transformers	1m 56s
tests-transformers	1m 56s
tests-transformers-musicgen	2m 53s
tests-transformers-musicgen	2m 53s
tests-vallex	3m 6s
tests-vallex	3m 6s
	48m 50s

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