message: fix: freeze custom type in samples and fix
diff: @@ -72,7 +72,7 @@ fn create_udt(session: &CurrentSession) {
  fn create_table(session: &CurrentSession) {
  let create_table_cql =
  "CREATE TABLE IF NOT EXISTS test_ks.my_test_table (key int PRIMARY KEY, \
  - user test_ks.user, map map<text, frozen<test_ks.user>>, list list<frozen<test_ks.user>>);";
  + user frozen<test_ks.user>, map map<text, frozen<test_ks.user>>, list list<frozen<test_ks.user>>);";
  session
  .query(create_table_cql)
  .expect("Table creation error");
  