Update chia-bls and switch to chia-sha2 (#497) #1976

Job	Run time
Wheel on macos-13 py-3.8	1m 33s
Checks	52s
Wheel on ubuntu-latest py-3.8	1m 48s
Wheel on windows-latest py-3.8	2m 55s
coverage	7m 19s
Run fuzz targets (macos-13, 3.8)	19m 17s
Run fuzz targets (ubuntu-latest, 3.8)	14m 3s
Unit tests (macos-13, 3.8)	7m 38s
Unit tests (ubuntu-latest, 3.8)	3m 24s
Unit tests (windows-latest, 3.8)	6m 59s
Upload to PyPI	11s
	1h 5m 59s

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