Fix TpLink Device Tracker initialize error (#22349)

Catch RequestException instead of ConnectionError
In some cases TpLinkDeviceScanner throws various successors of
RequestException. They should be caught.

homeassistant/components/tplink/device_tracker.py

@@ -77,8 +77,8 @@ def __init__(self, config):
             self.last_results = {}
 
             self.success_init = self._update_info()
-        except requests.exceptions.ConnectionError:
-            _LOGGER.debug("ConnectionError in TplinkDeviceScanner")
+        except requests.exceptions.RequestException:
+            _LOGGER.debug("RequestException in %s", __class__.__name__)
 
     def scan_devices(self):
         """Scan for new devices and return a list with found device IDs."""
@@ -123,8 +123,8 @@ def __init__(self, config):
         self.success_init = False
         try:
             self.success_init = self._update_info()
-        except requests.exceptions.ConnectionError:
-            _LOGGER.debug("ConnectionError in Tplink1DeviceScanner")
+        except requests.exceptions.RequestException:
+            _LOGGER.debug("RequestException in %s", __class__.__name__)
 
     def scan_devices(self):
         """Scan for new devices and return a list with found device IDs."""