build: update schematics dependencies to ~6.3.0 #3756

Job	Run time
list	25s
workflow (build-unit-tests)	2m 45s
workflow (devkit-core-tests)	1m 28s
workflow (devkit-core-tests-rerun)	2m 7s
workflow (modules-builder-tests)	2m 22s
workflow (build-cli)	1m 55s
	11m 2s

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