build: update dependency ng-packagr to v20.0.0-rc.2 #1604

Job	Run time
build	22s
lint	2m 14s
e2e_windows (windows-2025, 22, esbuild, 1)	1m 53s
e2e_windows (windows-2025, 22, npm, 0)	1m 3s
e2e_windows (windows-2025, 22, npm, 1)	4m 33s
e2e_windows (windows-2025, 22, npm, 3)	1m 24s
e2e_windows (windows-2025, 22, npm, 2)	1m 18s
e2e_windows (windows-2025, 22, npm, 5)	50s
e2e_windows (windows-2025, 22, esbuild, 2)	2m 41s
e2e_windows (windows-2025, 22, esbuild, 5)	46s
e2e_windows (windows-2025, 22, esbuild, 0)	1m 27s
e2e_windows (windows-2025, 22, npm, 4)	57s
e2e_windows (windows-2025, 22, esbuild, 3)	1m 3s
e2e_windows (windows-2025, 22, esbuild, 4)	1m 11s
test	0s
e2e-package-managers	0s
Browser Compatibility Tests	0s
publish-snapshots	0s
e2e-snapshots	0s
e2e	0s
	21m 42s

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