Added missing constant to build config.

rollup.config.js

@@ -39,6 +39,7 @@ function glconstants() {
 		SCISSOR_TEST: 3089,
 		UNPACK_ALIGNMENT: 3317,
 		MAX_TEXTURE_SIZE: 3379,
+		DEPTH24_STENCIL8: 35056,
 		TEXTURE_2D: 3553,
 		BYTE: 5120,
 		UNSIGNED_BYTE: 5121,