Add a placeholder dependency for angular material progress spinner #11015

Job	Run time
lint-misc	23s
lint-frontend	2m 15s
build-data-server-pip (native, ubuntu-20.04, 1.65.0)	2m 4s
lint-python-flake8 (3.9)	28s
build-data-server-pip (native, macos-12, 1.65.0)	3m 23s
lint-python-flake8 (3.10)	37s
lint-python-yaml-docs	53s
lint-rust (1.65.0, 0.16.1)	57s
build-data-server-pip (universal, ubuntu-20.04, 1.65.0)	23s
lint-python-flake8 (3.11)	35s
build (tf, 3.9)	21m 54s
build (notf, 3.9)	10m 59s
	44m 51s

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