fix(@angular/build): aggregate parallel worker performance timings on… #10592

Job	Run time
build-e2e-windows	21s
lint	21s
build	22s
e2e-windows	1s
Browser Compatibility Tests	1s
publish-snapshots	1s
e2e-package-managers	1s
e2e-snapshots	1s
test	1s
e2e	1s
	1m 11s

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