WebGPURenderer: Fix ImageBitmap flip in WebGLBackend (#29866)

* WebGPURenderer: Fix ImageBitmap flip in WebGLBackend

* Update TextureNode.js

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Co-authored-by: sunag <sunagbrasil@gmail.com>

src/nodes/accessors/TextureNode.js

@@ -126,7 +126,7 @@ class TextureNode extends UniformNode {
 
 		const texture = this.value;
 
-		if ( builder.isFlipY() && ( texture.isRenderTargetTexture === true || texture.isFramebufferTexture === true || texture.isDepthTexture === true ) ) {
+		if ( builder.isFlipY() && ( ( texture.image instanceof ImageBitmap && texture.flipY === true ) || texture.isRenderTargetTexture === true || texture.isFramebufferTexture === true || texture.isDepthTexture === true ) ) {
 
 			if ( this.sampler ) {