Merge branch 'main' of github.com:NSoiffer/MathCATForPython #246

Job	Run time
Build 64 bit windows pyd file	3m 23s
Build 32 bit windows pyd file	3m 38s
Build linux pyd file (64-bit intel)	1m 23s
l10n	6s
zip up the rules directory	44s
build-addon	24s
Pre Release	9s
	9m 47s

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