Add build step for cloudbuild workflow #304

Job	Run time
format	1m 19s
lint	1m 30s
storybook	2m 50s
compile (macos-latest)	3m 48s
compile (ubuntu-20.04)	3m 42s
compile (windows-latest)	3m 55s
test	2m 21s
test-types	1m 18s
preview-web	1m 4s
e2e-web	4m 38s
build-and-test-app (macos-latest)	6m 7s
build-and-test-app (ubuntu-20.04)	5m 9s
build-and-test-app (windows-latest)	7m 5s
release-web-prod	0s
release-app	0s
	44m 46s

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