[godot] Fix gitignore again.

.gitignore

@@ -165,4 +165,5 @@ spine-cocos2dx/example/build-ios
 spine-cocos2dx/example/proj.android/app/.cxx
 spine-cocos2dx/example/build-win
 spine-godot/godot
-spine-godot/spine_godot
+spine-godot/spine_godot/__pycache__
+spine-godot/spine_godot/spine-cpp