[5.1.x] Simplified GeoIP2._query() when passing IPv4Address()/IPv6Address() instances.

There is no need to call validate_ipv46_address() for
ipaddress.IPv4Address()/ipaddress.IPv6Address() instances since this
relies on trying to create these kind objects from strings, so they will
always be valid.

Backport of 0cabed9 from main.

Author: felixxm

django/contrib/gis/geoip2.py

@@ -153,11 +153,12 @@ def _query(self, query, *, require_city=False):
         if require_city and not self.is_city:
             raise GeoIP2Exception(f"Invalid GeoIP city data file: {self._path}")
 
-        try:
-            validate_ipv46_address(query)
-        except ValidationError:
-            # GeoIP2 only takes IP addresses, so try to resolve a hostname.
-            query = socket.gethostbyname(query)
+        if isinstance(query, str):
+            try:
+                validate_ipv46_address(query)
+            except ValidationError:
+                # GeoIP2 only takes IP addresses, so try to resolve a hostname.
+                query = socket.gethostbyname(query)
 
         function = self._reader.city if self.is_city else self._reader.country
         return function(query)