In 3dUpdates branch unity packs all urp shaders causing long build times

[OlaBekkevold]

https://discussions.unity.com/t/very-long-build-times-when-compiling-shaders-all-build-platforms-urp-2023-3-19/949554

https://discussions.unity.com/t/urp-shader-variant-build-times/895691

[Anartz22]

Assets were repacked on Issue 883.