simplyprint: silence stream errors

Signed-off-by: Eric Callahan <arksine.code@gmail.com>

moonraker/components/simplyprint.py

@@ -1335,6 +1335,8 @@ class WebcamStream:
             except asyncio.CancelledError:
                 raise
             except Exception as e:
+                if not self.server.is_debug_enabled():
+                    pass
                 if type(last_err) != type(e) or last_err.args != e.args:
                     last_err = e
                     cname = self.__class__.__name__