WebGPURenderer: Fix depthTest in logarithmicDepthBuffer

[sunag]

Related issue: #30203, #29799

Description

Calculate the depth should be required for depth testing, but it won't necessarily write once it is disabled in the pipeline if material.depthWrite is false.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	339.44 79.06	339.44 79.06	+0 B +0 B
WebGPU	488.27 135.68	488.29 135.69	+21 B +9 B
WebGPU Nodes	487.74 135.56	487.76 135.57	+21 B +11 B

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

	Before	After	Diff
WebGL	465.3 112.11	465.3 112.11	+0 B +0 B
WebGPU	558.06 151.21	558.08 151.22	+21 B +8 B
WebGPU Nodes	514.13 140.95	514.15 140.96	+21 B +7 B