Tests

BanditScheduler: Add emitter_pool and active attr; remove emitters attr #2535

Job	Run time
examples	3m 9s
benchmarks	1m 37s
docs	1m 54s
pin	2m 34s
coverage	1m 29s
pre-commit	45s
test (ubuntu-latest, 3.12)	1m 21s
test (macos-latest, 3.12)	1m 23s
tutorials_list	3s
test (windows-latest, 3.12)	4m 11s
tutorials (tutorials/arm_repertoire.ipynb)	1m 26s
tutorials (tutorials/cma_mae.ipynb)	8m 12s
tutorials (tutorials/features/example.ipynb)	40s
tutorials (tutorials/fooling_mnist.ipynb)	3m 14s
tutorials (tutorials/lsi_mnist.ipynb)	7m 38s
tutorials (tutorials/scalable_cma_mae.ipynb)	5m 11s
deploy	0s
	44m 47s

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