feat: add scaleway inference provider #8703

Job	Run time
build-windows (3.8, Everything else)	8m 3s
build-windows (3.11, Everything else)	9m 3s
build-windows (3.11, Xet only)	2m 27s
build-windows (3.8, Xet only)	3m 20s
build-ubuntu (3.8, Repository only)	2m 12s
build-ubuntu (3.8, Everything else)	7m 19s
build-ubuntu (3.8, Inference only)	1m 14s
build-ubuntu (3.13, Repository only)	2m 7s
build-ubuntu (3.8, Xet only)	1m 15s
build-ubuntu (3.13, lfs)	57s
build-ubuntu (3.13, Xet only)	1m 17s
build-ubuntu (3.8, fastai)	1m 52s
build-ubuntu (3.13, Everything else)	6m 20s
build-ubuntu (3.10, tensorflow)	2m 8s
build-ubuntu (3.12, torch_latest)	1m 23s
build-ubuntu (3.13, Inference only)	1m 8s
build-ubuntu (3.8, Python 3.8, torch_1.11)	1m 54s
build-ubuntu (3.10, fastai)	1m 9s
build-ubuntu (3.8, tensorflow)	2m 21s
	57m 29s

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