WebGPURenderer: TimestampQuery constant

[RenaudRohlinger]

Related comment: #30359 (comment)

Description

This contribution is funded by Utsubo

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	336.25 78.28	336.27 78.29	+15 B +12 B
WebGPU	510.39 141.66	510.4 141.67	+15 B +12 B
WebGPU Nodes	509.86 141.55	509.87 141.57	+15 B +13 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	465.25 112.13	465.25 112.13	+0 B +0 B
WebGPU	584.39 158.38	584.39 158.38	+0 B +0 B
WebGPU Nodes	539.77 147.93	539.77 147.93	+0 B +0 B