[WebGPU] Pipeline needs to pass zNear and zFar to fragment shader for clamping depth writes
<rdar://problem/118138930>
Pull request: https://github.com/WebKit/WebKit/pull/20192
Committed 270469@main (48520e8acaa0): <https://commits.webkit.org/270469@main> Reviewed commits have been landed. Closing PR #20192 and removing active labels.