fix(@angular-devkit/core): update `ajv` to `8.18.0` #3107

Job	Run time
list	52s
workflow (modules-builder-tests)	2m 2s
workflow (build-cli)	2m 58s
workflow (devkit-core-tests-rerun)	1m 25s
workflow (devkit-core-tests)	1m 58s
workflow (build-unit-tests)	2m 38s
	11m 53s

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