Merge pull request #117 from dihm/pyside6_fix #74

Job	Run time
Configure workflow run	15s
Build (ubuntu-latest)	2m 51s
Publish on Test PyPI	19s
Publish on Anaconda (test label)	44s
Publish on Anaconda	-1s
Publish on PyPI	-1s
Publish release (GitHub)	-1s
	4m 6s

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