fix: forbid end at stream syntax

[zhyass]

I hereby agree to the terms of the CLA available at: https://docs.databend.com/dev/policies/cla/

Summary

disallowing the use of end => '....' within the changes clause, since it does not make sense so much.

mysql> create table t(a int)change_tracking=true;
Query OK, 0 rows affected (0.15 sec)

mysql> insert into t values(2);
Query OK, 1 row affected (0.15 sec)

mysql> insert into t values(1);
Query OK, 1 row affected (0.16 sec)

mysql> create stream s on table t append_only = false;
Query OK, 0 rows affected (0.14 sec)

mysql> select * from t changes(information=>default) at(snapshot=>'c8aa4edd973246749520bc7c57c47e1a') end(stream=>s1);
 
ERROR 1105 (HY000): SyntaxException. Code: 1005, Text = error: 
  --> SQL:1:100
  |
1 | select * from t changes(information=>default) at(snapshot=>'c8aa4edd973246749520bc7c57c47e1a') end(stream=>s1)
  | ------                                                                                             ^^^^^^ unexpected `stream`, expecting `TIMESTAMP` or `SNAPSHOT`
  | |                                                                                                   
  | while parsing `SELECT ...`

• Fixes #[Link the issue here]

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

---

This change is