Prepare source distributions and wheels

Updated SageMath version to 10.6.beta2 #97

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Run time

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Job	Run time
release_dist	12m 5s
sdists_for_pypi	12m 46s
noarch_wheels_for_pypi	11m 40s
release	1m 27s
wheels manylinux*_x86_64	15m 36s
wheels musllinux*_x86_64	19m 35s
wheels manylinux*_i686	15m 50s
wheels musllinux*_i686	19m 57s
wheels manylinux*_aarch64	4h 21m 13s
wheels musllinux*_aarch64	4h 38m 47s
wheels macosx*_x86_64	21m 13s
wheels macosx*_arm64	11m 54s
upload_wheels	4m 44s
	11h 26m 47s