enforce float32 in normal_simulator.py #171

Job	Run time
lint	1m 22s
test (ubuntu-latest, 3.10, jax)	5m 27s
test (ubuntu-latest, 3.10, tensorflow)	5m 19s
test (ubuntu-latest, 3.10, torch)	3m 51s
test (ubuntu-latest, 3.11, jax)	6m 34s
test (ubuntu-latest, 3.11, tensorflow)	5m 52s
test (ubuntu-latest, 3.11, torch)	3m 56s
test (windows-latest, 3.10, jax)	9m 22s
test (windows-latest, 3.10, tensorflow)	10m 29s
test (windows-latest, 3.10, torch)	10m 14s
test (windows-latest, 3.11, jax)	11m 18s
test (windows-latest, 3.11, tensorflow)	10m 23s
test (windows-latest, 3.11, torch)	11m 45s
	1h 35m 52s

Provide feedback