BIT_ XOR function has a collision example that is easy to occur

[Leavrth]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. What did you do?
   If possible, provide a recipe for reproducing the error.
   
   BIT_XOR function after CRC32 function is hard to avoid this example.
   

2. What did you expect to see?
   The 2 tables' checksums should be different.

3. What did you see instead?
   The 2 tables' checksums are the same.

4. What version of TiDB are you using (tidb-server -V or run select tidb_version(); on TiDB)?

5. which tool are you using?
   sync-diff-inspector

6. what versionof tool are you using (pump -V or tidb-lightning -V or syncer -V)?

App Name: sync_diff_inspector v2.0
Release Version: v5.2.2-142-g2d0c30a-dirty
Git Commit Hash: 2d0c30aae7cbdb15ab777c934dcdbcb786ea1d3a
Git Branch: config_chunk_iter_thread
UTC Build Time: 2022-06-15 07:29:11
Go Version: go1.18.3