models(gallery): add flammenai/Mahou-1.3d-mistral-7B #4766

Job	Run time
tests-openvoice	3m 12s
tests-parler-tts	2m 49s
tests-diffusers	2m 10s
tests-rerankers	2m 22s
tests-sentencetransformers	2m 41s
tests-transformers	1m 54s
tests-coqui	3m 24s
tests-transformers-musicgen	3m 14s
tests-vallex	4m 51s
	26m 37s

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