Attempt to fix ref count memory leak caused by ASTCContext.decompress

Author: t-wy

Diff for: src/pybind.cpp

@@ -673,7 +673,7 @@ PyObject *ASTCContext_method_decompress(ASTContextT *self, PyObject *args, PyObj
     }
 
     // create a python bytes object from the decompressed data
-    Py_IncRef(py_image_data);
+    // Py_IncRef(py_image_data); // ref count is already increased by PyBytes_FromStringAndSize
     Py_DecRef(py_image->data);
     py_image->data = py_image_data;
 
@@ -847,4 +847,4 @@ PyMODINIT_FUNC INIT_FUNC_NAME(void)
     }
 
     return m;
-}
+}