Add `Clash.Class.NumConvert` #3586

Job	Run time
Build and run limited tests (macOS-13, 9.4)	21m 16s
Build and run limited tests (macOS-13, 9.2)	17m 42s
Build and run limited tests (macOS-13, 9.10)	24m 14s
Build and run limited tests (macOS-13, 9.8)	22m 5s
Build and run limited tests (macOS-13, 9.0)	19m 13s
Build and run limited tests (windows-latest, 9.2)	15m 54s
Build and run limited tests (windows-latest, 8.10)	20m 33s
Build and run limited tests (macOS-13, 9.6)	22m 8s
Build and run limited tests (windows-latest, 9.4)	17m 28s
Build and run limited tests (windows-latest, 9.0)	16m 37s
Build and Test	-7s
All jobs finished	13s
	3h 17m 16s

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