Update vendor/cgltf/src/Makefile

missing darwin folder

Co-authored-by: Laytan <[email protected]>

vendor/cgltf/src/Makefile

@@ -13,7 +13,7 @@ unix:
 	rm *.o
 
 darwin:
-	mkdir -p ../lib
+	mkdir -p ../lib/darwin
 	$(CC) -arch x86_64 -c -O2 -Os -fPIC cgltf.c -o cgltf-x86_64.o -mmacosx-version-min=10.12
 	$(CC) -arch arm64  -c -O2 -Os -fPIC cgltf.c -o cgltf-arm64.o -mmacosx-version-min=10.12
 	lipo -create cgltf-x86_64.o cgltf-arm64.o -output ../lib/darwin/cgltf.a