fix:fix header validation when using Chinese char.

[SkyeBeFreeman]

PR Type

Bugfix.

Describe what this PR does for and how you did.

Adding the issue link (#xxx) if possible.

fixes #1106

Note

Checklist

• Add information of this PR to CHANGELOG.md in root of project.
• Add documentation in javadoc or comment below the PR if necessary.

Checklist (Optional)

• Will pull request to branch of 2020.0.
• Will pull request to branch of 2022.0.
• Will pull request to branch of hoxton.

[codecov]

Codecov Report

Merging #1167 (37cce7c) into hoxton (eea8d3b) will decrease coverage by 0.08%.
The diff coverage is 58.33%.

@@             Coverage Diff              @@
##             hoxton    #1167      +/-   ##
============================================
- Coverage     71.15%   71.07%   -0.08%     
  Complexity     1564     1564              
============================================
  Files           269      269              
  Lines          6163     6178      +15     
  Branches        756      756              
============================================
+ Hits           4385     4391       +6     
- Misses         1394     1403       +9     
  Partials        384      384              

Files	Coverage Δ
...aris/ratelimit/filter/QuotaCheckServletFilter.java	90.47% <57.14%> (-6.83%)	⬇️
...enhancement/plugin/PolarisEnhancedPluginUtils.java	77.17% <57.14%> (-1.90%)	⬇️
...ris/ratelimit/filter/QuotaCheckReactiveFilter.java	85.41% <60.00%> (-5.50%)	⬇️