setDaemon is deprecated

The new way to do this is to `daemon = True`

Author: lhayhurst

pytest-server-fixtures/pytest_server_fixtures/base.py

@@ -104,7 +104,7 @@ def __init__(self, process, stream, stderr):
         self.process = process
         self.stream = stream
         super(ProcessReader, self).__init__()
-        self.setDaemon(True)
+        self.daemon = True
 
     def run(self):
         while self.process.poll() is None: