- maxImageDimension3D updated to 2048.
 - maxFragmentCombinedOutputResources updated to 28. This is
   maxColorAttachments + maxPerStageDescriptorStorageBuffers +
   maxPerStageDescriptorStorageImages. 8 + 16 + 4 = 28. WebGPU doesn't
   have a limit for combined fragment outputs and requires at least this
   many.

Bug: dawn:796
Change-Id: Ibda29f98d9fa6685ba8eac4b68dc03b70ae5100d
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/55248
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Commit-Queue: Corentin Wallez <cwallez@google.com>