[MAINT] update workflow and fix example (#905) #1191

Job	Run time
Determine if CI should be skipped	11s
Unit tests with minimum dependency versions (ubuntu-latest, 3.8)	43m 13s
Unit tests (ubuntu-latest, 3.8)	38m 41s
Unit tests (ubuntu-latest, 3.9)	43m 32s
CBMR ImportError tests (ubuntu-latest, 3.8)	56s
Corrector performance tests (ubuntu-latest, 3.8)	42m 51s
Unit tests (ubuntu-latest, 3.10)	45m 44s
Estimator performance tests (ubuntu-latest, 3.8)	6m 45s
Unit tests (ubuntu-latest, 3.11)	42m 39s
Smoke performance tests (ubuntu-latest, 3.8)	39m 27s
Unit tests (ubuntu-latest, 3.12)	45m 9s
Unit tests (macos-latest, 3.8)	44m 44s
Unit tests (macos-latest, 3.9)	26m 1s
Unit tests (macos-latest, 3.10)	23m 12s
Unit tests (macos-latest, 3.11)	23m 43s
Unit tests (macos-latest, 3.12)	23m 36s
Upload coverage	13s
	8h 10m 37s

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