Fix show functions call

Author: kesmit13

singlestoredb/functions/ext/asgi.py

@@ -790,7 +790,8 @@ def _locate_app_functions(self, cur: Any) -> Tuple[Set[str], Set[str]]:
         """Locate all current functions and links belonging to this app."""
         funcs, links = set(), set()
         cur.execute('SHOW FUNCTIONS')
-        for name, ftype, _, _, _, link in list(cur):
+        for row in list(cur):
+            name, ftype, link = row[0], row[1], row[-1]
             # Only look at external functions
             if 'external' not in ftype.lower():
                 continue