Switch to trusted publishing for pypi (#337) #1512

Job	Run time
Wheel on macos-latest py-3.7	3m 20s
Wheel on ubuntu-latest py-3.7	4m 45s
Wheel on windows-latest py-3.7	6m 12s
Checks	1m 6s
Run fuzz targets (macos-latest, 3.7)	42m 40s
Run fuzz targets (ubuntu-latest, 3.7)	30m 8s
Unit tests (macos-latest, 3.7)	7m 51s
Unit tests (ubuntu-latest, 3.7)	5m 3s
Unit tests (windows-latest, 3.7)	10m 47s
coverage	23m 28s
	2h 15m 20s

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