TSL: Use correct elementType with WorkgroupInfoNode

[RenaudRohlinger]

Related issue: #29192

Description

const localStorage = workgroupArray('uvec2', 64 * 2)

// before: (error)
localStorage.element(0) <-- WGSL will assign uint type

// after:
localStorage.element(0) <-- WGSL now assign correctly uvec2

This contribution is funded by Utsubo

[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	489.24 135.78	489.3 135.8	+60 B +15 B
WebGPU Nodes	488.71 135.66	488.77 135.68	+60 B +18 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	558.8 151.3	558.8 151.3	+0 B +0 B
WebGPU Nodes	514.87 141.07	514.87 141.07	+0 B +0 B