Tests

Add Rational Quadratic Spline Transforms to Normalizing Flows #435

Job	Run time
lint	1m 16s
test (ubuntu-latest, 3.10, jax)	9m 29s
test (ubuntu-latest, 3.10, tensorflow)	9m 22s
test (ubuntu-latest, 3.10, torch)	6m 1s
test (ubuntu-latest, 3.11, jax)	9m 59s
test (ubuntu-latest, 3.11, tensorflow)	9m 50s
test (ubuntu-latest, 3.11, torch)	6m 21s
test (windows-latest, 3.10, jax)	17m 1s
test (windows-latest, 3.10, tensorflow)	16m 0s
test (windows-latest, 3.10, torch)	12m 59s
test (windows-latest, 3.11, jax)	16m 39s
test (windows-latest, 3.11, tensorflow)	16m 14s
test (windows-latest, 3.11, torch)	13m 8s
	2h 24m 19s

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