Disallow `schemaOverrides` in `*` configuration #5464

Job	Run time
quesma-test-and-compile (quesma)	1m 24s
build-log-generator (log-generator)	46s
build-quesma-docker-image / build-quesma-docker-image (quesma)	1m 18s
smoke-test	2m 9s
	5m 37s

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