fix(@angular/build): pass `preserveSymlinks` option to Karma esbuild … #922

Job	Run time
list	35s
workflow (build-unit-tests)	2m 31s
workflow (modules-builder-tests)	2m 3s
workflow (devkit-core-tests)	1m 26s
workflow (devkit-core-tests-rerun)	1m 44s
workflow (build-cli)	1m 51s
	10m 10s

Provide feedback