Test

chore: put test deps into `test/Project.toml` #2181

Job	Run time
1 - DIT (Formalities)	4m 12s
1 - DIT (Weird)	4m 17s
1 - DIT (Zero)	4m 11s
1 - DIT (Standard)	3m 54s
1 - DI (Core/SimpleFiniteDiff)	15m 3s
1 - DI (Back/SparsityDetector)	4m 38s
1 - DI (Core/Internals)	4m 50s
1 - DI (Back/DifferentiateWith)	8m 2s
1 - DI (Core/ZeroBackends)	11m 5s
1 - DI (Back/FiniteDiff)	13m 14s
1 - DI (Back/FiniteDifferences)	6m 56s
1 - DI (Back/ForwardDiff)	15m 2s
1 - DI (Back/Mooncake)	15m 2s
1 - DI (Back/ReverseDiff)	15m 5s
1 - DI (Back/SymbolicBackends)	15m 1s
1 - DI (Back/Enzyme)	10m 50s
1 - DI (Back/Zygote)	10m 29s
1 - DI (Back/GTPSA)	9m 6s
1 - DI (Back/PolyesterForwardDiff)	10m 46s
1 - DI (Down/Flux)	7m 44s
1 - DI (Back/Tracker)	6m 2s
1 - DI (Down/Lux)	9m 57s
	3h 25m 26s

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