Include proper files in sdist so they land in the wheel #1049

Job	Run time
linting	12s
build (3.10, ubuntu-latest)	1m 56s
documentation	2m 18s
build (3.10, macos-latest)	2m 4s
build (3.10, windows-latest)	3m 18s
build (3.11, macos-latest)	3m 7s
build (3.11, windows-latest)	3m 22s
build (3.12, ubuntu-latest)	2m 7s
build (3.12, macos-latest)	2m 30s
build (3.12, windows-latest)	3m 11s
build (3.11, ubuntu-latest, true, --remote-data=any)	2m 53s
	26m 58s

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