Don't create 3.13 bundles. #115

Job	Run time
Cargo.lock	3s
build sdist	14s
build on linux (x86_64 - auto)	2m 50s
build on linux (aarch64 - auto)	3m 4s
build on macos (x86_64 - auto)	3m 8s
build on macos (aarch64 - auto)	8m 13s
build on windows (x86_64 - auto)	3m 50s
build on windows (i686 - auto)	3m 35s
build on linux (i686 - auto)	4m 5s
build on linux (armv7 - auto)	2m 38s
build on linux (x86_64 - musllinux_1_1)	2m 30s
build on linux (aarch64 - musllinux_1_1)	2m 25s
build on linux (ppc64le - auto)	2m 23s
build on linux (s390x - auto)	2m 28s
Upload package to PyPi	3m 24s
	44m 50s

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