build: update schematics dependencies to ~6.1.0 #3101

Job	Run time
list	18s
workflow (devkit-core-tests)	1m 34s
workflow (modules-builder-tests)	1m 50s
workflow (build-cli)	1m 40s
workflow (build-unit-tests)	2m 32s
workflow (devkit-core-tests-rerun)	1m 23s
	9m 17s

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