Test

Merge pull request #81 from PyO3/update-pythonxy #141

Job	Run time
Clippy lints	3s
Build and test (ubuntu-latest)	41s
Check code formatting	5s
Build and test (windows-latest)	1m 35s
Test zig dlltool	21s
Test python -m ziglang dlltool	20s
	3m 5s

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