WebGLRenderer: Added note about workaround in copyFramebufferToTexture()

Author: mrdoob

src/renderers/WebGLRenderer.js

@@ -2040,6 +2040,7 @@ function WebGLRenderer( parameters = {} ) {
 		if ( capabilities.isWebGL2 ) {
 
 			// Workaround for https://bugs.chromium.org/p/chromium/issues/detail?id=1120100
+			// Not needed in Chrome 93+
 
 			if ( glFormat === _gl.RGB ) glFormat = _gl.RGB8;
 			if ( glFormat === _gl.RGBA ) glFormat = _gl.RGBA8;