Update Python SDK to 1.20.0 #1024

Job	Run time
build-lint-test (3.10, ubuntu-latest)	5m 48s
build-lint-test (3.10, macos-arm)	7m 19s
build-lint-test (3.10, macos-intel)	7m 22s
build-lint-test (3.14, macos-arm)	6m 59s
build-lint-test (3.14, ubuntu-latest)	7m 18s
build-lint-test (3.14, macos-intel)	7m 24s
build-lint-test (3.10, windows-latest)	6m 43s
build-lint-test (3.14, windows-latest)	7m 25s
	56m 18s

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