fix(@angular/build): ensure `ɵgetOrCreateAngularServerApp` is always… #2418

Job	Run time
list	22s
workflow (modules-builder-tests)	1m 49s
workflow (devkit-core-tests-rerun)	1m 26s
workflow (devkit-core-tests)	1m 15s
workflow (build-unit-tests)	2m 32s
workflow (build-cli)	1m 41s
	9m 5s

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