refactor(@angular/build): expose dev-server options normalization fun… #9827

Job	Run time
build	2m 58s
lint	2m 16s
build-e2e-windows	3m 15s
Browser Compatibility Tests	1m 53s
publish-snapshots	1m 52s
test	1m 52s
e2e-windows (24, esbuild, 4)	1m 34s
e2e-windows (24, esbuild, 2)	1m 34s
e2e-windows (24, esbuild, 0)	1m 26s
e2e-windows (24, esbuild, 5)	1m 26s
e2e-windows (24, esbuild, 3)	1m 34s
e2e-windows (24, webpack, 2)	1m 27s
e2e-windows (24, esbuild, 1)	1m 26s
e2e-windows (24, webpack, 4)	1m 26s
e2e-windows (24, webpack, 5)	1m 34s
e2e-windows (24, webpack, 1)	1m 27s
e2e-windows (24, webpack, 0)	1m 28s
e2e-windows (24, webpack, 3)	1m 27s
e2e-package-managers	1s
e2e	1s
e2e-snapshots	1s
	31m 58s

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