fix(django): Fix psycopg2 detection (#2593)

We were failing to detect built-in methods. isroutine() should cover both cases.

Author: sentrivana

sentry_sdk/integrations/django/__init__.py

@@ -697,7 +697,7 @@ def _set_db_data(span, cursor_or_db):
     is_psycopg2 = (
         hasattr(cursor_or_db, "connection")
         and hasattr(cursor_or_db.connection, "get_dsn_parameters")
-        and inspect.isfunction(cursor_or_db.connection.get_dsn_parameters)
+        and inspect.isroutine(cursor_or_db.connection.get_dsn_parameters)
     )
     if is_psycopg2:
         connection_params = cursor_or_db.connection.get_dsn_parameters()
@@ -706,7 +706,7 @@ def _set_db_data(span, cursor_or_db):
             hasattr(cursor_or_db, "connection")
             and hasattr(cursor_or_db.connection, "info")
             and hasattr(cursor_or_db.connection.info, "get_parameters")
-            and inspect.isfunction(cursor_or_db.connection.info.get_parameters)
+            and inspect.isroutine(cursor_or_db.connection.info.get_parameters)
         )
         if is_psycopg3:
             connection_params = cursor_or_db.connection.info.get_parameters()