Store redirect URI in context instead of asking each time (#77380)

* Store redirect URI in context instead of asking each time

* Fix tests

homeassistant/data_entry_flow.py

@@ -484,6 +484,7 @@ class FlowHandler:
             data=data,
             description=description,
             description_placeholders=description_placeholders,
+            context=self.context,
         )
 
     @callback