Snowflake tests: match new ShowObjects.dynamic field in SHOW OBJECTS test

The ShowObjects struct gained a `dynamic` field but this exhaustive
pattern in test_show_objects was not updated, breaking the test crate
build. Add `..` so the suite compiles.

Author: Wojciech Padlo

tests/sqlparser_snowflake.rs

@@ -3868,6 +3868,7 @@ fn test_parse_show_objects() {
         Statement::ShowObjects(ShowObjects {
             terse,
             show_options,
+            ..
         }) => {
             assert!(terse);
             let name = match show_options.show_in {