ActiveDoc: make Python 3 the default version #3145

Job	Run time
build_and_test (3.11, 22.x, :lint:python:client:common:smoke:stubs:)	3m 51s
build_and_test (3.11, 22.x, :lint:python:client:common:smoke:stubs:)	5m 28s
build_and_test (3.11, 22.x, :server-1-of-2:)	8m 28s
build_and_test (3.11, 22.x, :server-1-of-2:)	8m 28s
build_and_test (3.11, 22.x, :server-2-of-2:)	9m 42s
build_and_test (3.11, 22.x, :server-2-of-2:)	9m 42s
build_and_test (3.11, 22.x, :nbrowser-^[A-D]:)	10m 29s
build_and_test (3.11, 22.x, :nbrowser-^[A-D]:)	10m 29s
build_and_test (3.11, 22.x, :nbrowser-^[E-L]:)	9m 51s
build_and_test (3.11, 22.x, :nbrowser-^[E-L]:)	10m 15s
build_and_test (3.11, 22.x, :nbrowser-^[M-N]:)	11m 48s
build_and_test (3.11, 22.x, :nbrowser-^[M-N]:)	11m 48s
build_and_test (3.11, 22.x, :nbrowser-^[O-R]:)	7m 11s
build_and_test (3.11, 22.x, :nbrowser-^[O-R]:)	7m 11s
build_and_test (3.11, 22.x, :nbrowser-^[^A-R]:)	7m 10s
build_and_test (3.11, 22.x, :nbrowser-^[^A-R]:)	7m 10s
build_and_test (:lint:python:client:common:smoke:, 22.x, 3.10)	7m 7s
build_and_test (:lint:python:client:common:smoke:, 22.x, 3.10)	7m 7s
candidate	0s
candidate	5s
	2h 33m 20s

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