Tests

one more CR to fix #47

Job	Run time
Verify Towncrier entry added	9s
ubuntu-latest, python3.11, defaults	31m 52s
ubuntu-latest, python3.12, p312 numpy 2	23m 51s
ubuntu-latest, python3.10, p310 numpy 1.22	22m 24s
ubuntu-latest, python3.12, p312, numpy fallback	33m 2s
ubuntu-latest, python3.10, p310 no mkl	21m 32s
macos-latest, python3.12, macos	15m 23s
macos-13, python3.11, macos - numpy fallback	35m 38s
windows-latest, python3.11, Windows	31m 35s
windows-latest, python3.10, Windows - numpy fallback	33m 13s
Finalise coverage reporting	14s
	4h 8m 53s

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