need StableRNGs in tests?

[vtjnash]

This test seems to be relying on a specific random number sequence, which requires StableRNGs to be stable.

Infinity.jl/test/infinite.jl

Lines 116 to 119 in 94725c6

	Random.seed!(1)
	@test rand(Infinite) == ∞
	@test rand(Infinite) == ∞
	@test rand(Infinite) == -∞

https://s3.amazonaws.com/julialang-reports/nanosoldier/pkgeval/by_date/2021-06/09/Infinity.1.7.0-DEV-f442e4230a.log