Fix: Correct `basic_charset` operator (#203) #490

Job	Run time
Cross Compilation (amd64, x86_64-linux-gnu)	57s
Alpine Linux	44s
Cross Compilation (arm64, aarch64-linux-gnu)	36s
Ubuntu (Clang 16)	30s
MacOS	40s
Ubuntu (GCC 12)	43s
Windows	30s
Swift on Linux	34s
Update Version	7s
Build Python ${{ matrix.python-version }} for ${{ matrix.os }}	0s
	5m 21s

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