update type check so that ++ with lists works better (#7926)

closes https://github.com/nushell/nushell/issues/7913

crates/nu-parser/src/type_check.rs

@@ -84,6 +84,7 @@ pub fn math_result_type(
                     }
                 }
                 (Type::Table(a), Type::Table(_)) => (Type::Table(a.clone()), None),
+                (Type::Any, _) | (_, Type::Any) => (Type::Any, None),
                 _ => {
                     *op = Expression::garbage(op.span);
                     (