Add SAA TemporalNexusOperation handling #5493

Job	Run time
test-latest-deps	9m 48s
features-tests / test	6m 36s
build-lint-test (3.10, ubuntu-latest)	14m 52s
build-lint-test (3.10, windows-latest)	26m 35s
build-lint-test (3.14, ubuntu-latest)	9m 48s
build-lint-test (3.10, ubuntu-arm)	13m 25s
build-lint-test (3.10, macos-arm)	9m 45s
build-lint-test (3.14, windows-latest)	24m 51s
build-lint-test (3.14, macos-arm)	9m 55s
build-lint-test (3.14, ubuntu-arm)	12m 27s
check-protos	4m 20s
cloud-test	3m 36s
	2h 25m 58s

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