Updates deprecated alias 'assertEquals' with non-deprecated method name #11730

Job	Run time
lint-python-flake8 (3.9)	19s
build-data-server-pip (native, ubuntu-20.04, 1.65.0)	1m 10s
lint-misc	12s
lint-python-flake8 (3.10)	15s
build-data-server-pip (native, macos-13, 1.65.0)	1m 39s
lint-frontend	1m 19s
lint-python-flake8 (3.11)	13s
build-data-server-pip (universal, ubuntu-20.04, 1.65.0)	12s
lint-python-yaml-docs	23s
lint-rust (1.65.0, 0.16.1)	37s
build (tf, 3.9)	1h 19m 38s
build (notf, 3.9)	1h 15m 25s
	2h 41m 22s

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