fix(@schematics/angular): application migration should migrate karma … #905

Job	Run time
list	23s
workflow (build-cli)	1m 36s
workflow (modules-builder-tests)	1m 50s
workflow (devkit-core-tests-rerun)	1m 20s
workflow (devkit-core-tests)	1m 19s
workflow (build-unit-tests)	2m 7s
	8m 35s

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