[WebGPU] Support ImageData, HTMLImageElement, HTMLVideoElement, and WebCodecsVideoFrame in GPUImageCopyExternalImage.source
<rdar://problem/115515260>
Pull request: https://github.com/WebKit/WebKit/pull/19969
Committed 270252@main (301f2352a75e): <https://commits.webkit.org/270252@main> Reviewed commits have been landed. Closing PR #19969 and removing active labels.