Add nslc_cma_imp to sphere example #2490

Job	Run time
test (ubuntu-latest, 3.12)	1m 19s
benchmarks	1m 37s
test (macos-latest, 3.12)	2m 15s
coverage	1m 52s
docs	2m 1s
test (windows-latest, 3.12)	4m 54s
examples	2m 49s
pin	2m 39s
pre-commit	1m 2s
tutorials_list	3s
tutorials (tutorials/arm_repertoire.ipynb)	1m 12s
tutorials (tutorials/cma_mae.ipynb)	8m 4s
tutorials (tutorials/features/example.ipynb)	1m 4s
tutorials (tutorials/fooling_mnist.ipynb)	3m 45s
tutorials (tutorials/lsi_mnist.ipynb)	8m 35s
tutorials (tutorials/lunar_lander.ipynb)	8m 56s
tutorials (tutorials/scalable_cma_mae.ipynb)	4m 9s
deploy	0s
	56m 16s

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