Fix tests

Author: ppinchuk

tests/ords/test_integrated.py

@@ -34,6 +34,7 @@ def __init__(self, read_return):
         self.read_return = read_return
         self.content_type = "application/pdf"
         self.charset = "utf-8"
+        self.headers = {}
 
     async def read(self):
         return self.read_return