Remove use of deprecated np.issubclass_ function #774

Job	Run time
Run linters with pre-commit	1m 41s
Determine Python versions	4s
Test building the documentation	2m 7s
Python 3.11 on ubuntu-20.04 (standalone: false, 32bit: false)	38m 42s
Python 3.11 on ubuntu-20.04 (standalone: false, 32bit: true)	30m 55s
Python 3.11 on ubuntu-20.04 (standalone: true, 32bit: false)	42m 40s
Python 3.11 on ubuntu-20.04 (standalone: true, 32bit: true)	33m 11s
Python 3.11 on windows-2019 (standalone: false, 32bit: false)	1h 42m 18s
Python 3.11 on windows-2019 (standalone: false, 32bit: true)	1h 19m 21s
Python 3.11 on windows-2019 (standalone: true, 32bit: false)	42m 33s
Python 3.11 on windows-2019 (standalone: true, 32bit: true)	32m 22s
Python 3.11 on macOS-11 (standalone: false, 32bit: false)	53m 20s
Python 3.11 on macOS-11 (standalone: false, 32bit: true)	54m 0s
Python 3.11 on macOS-11 (standalone: true, 32bit: false)	36m 25s
Python 3.11 on macOS-11 (standalone: true, 32bit: true)	30m 33s
Python 3.9 on ubuntu-20.04 (standalone: false, 32bit: false)	36m 10s
Python 3.9 on ubuntu-20.04 (standalone: true, 32bit: false)	34m 55s
Indicate completion to coveralls.io	15s
	10h 51m 32s

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