[WebGPU] GPUQueue.writeTexture adds layout offset twice
radar://112932080
radar://116791102
Pull request: https://github.com/WebKit/WebKit/pull/18930
Committed 269237@main (1fea69c70e60): <https://commits.webkit.org/269237@main> Reviewed commits have been landed. Closing PR #18930 and removing active labels.