Fix onvif ConnectionResetError (#45899)

Fix "ConnectionResetError: Cannot write to closing transport" error we can have on lots of chinese cams(like Goke GK7102 based IP cameras)
Those non full onvif compliant cams can "crash" when calling non implemented functions like events or ptz and they are likely react by closing transport, leaving the request in a uncatched error state.

My camera used to fail on setup, and now it run nicely with that simple fix.

homeassistant/components/onvif/device.py

@@ -250,14 +250,14 @@ class ONVIFDevice:
         pullpoint = False
         try:
             pullpoint = await self.events.async_start()
-        except (ONVIFError, Fault):
+        except (ONVIFError, Fault, RequestError):
             pass
 
         ptz = False
         try:
             self.device.get_definition("ptz")
             ptz = True
-        except ONVIFError:
+        except (ONVIFError, Fault, RequestError):
             pass
 
         return Capabilities(snapshot, pullpoint, ptz)