Updated builds.

build/three.js

@@ -17554,6 +17554,8 @@
 
 			array.push( renderer.gammaOutput );
 
+			array.push( renderer.gammaFactor );
+
 			return array.join();
 
 		};

build/three.module.js

@@ -17548,6 +17548,8 @@ function WebGLPrograms( renderer, extensions, capabilities ) {
 
 		array.push( renderer.gammaOutput );
 
+		array.push( renderer.gammaFactor );
+
 		return array.join();
 
 	};