Fix sqlparser cannot parse 'set names binary'

[canoriz]

Description

fix cannot parse "set names binary" #18581

Related Issue(s)

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.51%. Comparing base (1c5ca23) to head (7356cd1).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #18582      +/-   ##
==========================================
- Coverage   67.52%   67.51%   -0.01%     
==========================================
  Files        1607     1607              
  Lines      263324   263324              
==========================================
- Hits       177803   177793      -10     
- Misses      85521    85531      +10     

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