Update Python SDK to 1.20.0 #1025

Job	Run time
build-lint-test (3.10, windows-latest)	17s
build-lint-test (3.10, ubuntu-latest)	15s
build-lint-test (3.10, macos-arm)	20s
build-lint-test (3.14, macos-intel)	18s
build-lint-test (3.14, ubuntu-latest)	29s
build-lint-test (3.10, macos-intel)	19s
build-lint-test (3.14, macos-arm)	32s
build-lint-test (3.14, windows-latest)	18s
	2m 48s

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