PassNode: Fix depthTexture creation when depthBuffer: false

[thelazylamaGit]

With PassNode a depth texture was always being created even when explicitly setting { depthBuffer: false }.

Additonally, Textures.updateRenderTarget() also handled depth before checking whether it was actually enabled. Because of that, a depth texture could end up being created even with depth disabled.

This pr ensures that when creating a pass such as

pass(this.scene, this.camera, { depthBuffer: false }))

no depth texture is created.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	360.01 85.46	360.01 85.46	+0 B +0 B
WebGPU	633.22 175.54	633.33 175.58	+113 B +32 B
WebGPU Nodes	631.34 175.25	631.45 175.28	+113 B +31 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	492.21 120.03	492.21 120.03	+0 B +0 B
WebGPU	705.25 190.44	705.36 190.46	+113 B +21 B
WebGPU Nodes	654.47 177.68	654.58 177.71	+113 B +22 B