qt wizard: don't log xpub of hw cosigner

Author: SomberNight

electrum/gui/qt/wizard/wallet.py

@@ -1426,7 +1426,7 @@ def get_xpub_task(_client, _derivation, _xtype):
             except Exception as e:
                 self.error = repr(e)  # TODO: handle user interaction exceptions (e.g. invalid pin) more gracefully
                 self.logger.exception(repr(e))
-            self.logger.debug(f'Done retrieve xpub: {self.xpub}')
+            self.logger.debug(f'Done retrieve xpub: {self.xpub[:10]}...{self.xpub[-5:]}')
             self.busy = False
             self.validate()