fix(@angular/build): ensure `ɵgetOrCreateAngularServerApp` is always… #2419

Job	Run time
list	25s
workflow (build-cli)	1m 39s
workflow (modules-builder-tests)	1m 52s
workflow (devkit-core-tests)	1m 26s
workflow (devkit-core-tests-rerun)	1m 42s
workflow (build-unit-tests)	2m 32s
	9m 36s

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