chore: bump go-kong to v0.59.1

[tao12345666333]

What this PR does / why we need it:

Which issue this PR fixes:

Special notes for your reviewer:

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• the CHANGELOG.md release notes have been updated to reflect any significant (and particularly user-facing) changes introduced by this PR

[codecov]

Codecov Report

Attention: Patch coverage is 55.55556% with 4 lines in your changes missing coverage. Please review.

Project coverage is 70.0%. Comparing base (b929f67) to head (8297c52).
Report is 15 commits behind head on release/2.12.x.

Files with missing lines	Patch %	Lines
internal/dataplane/kongstate/kongstate.go	0.0%	0 Missing and 4 partials ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           release/2.12.x   #6657     +/-   ##
================================================
+ Coverage            68.0%   70.0%   +2.0%     
================================================
  Files                 165     168      +3     
  Lines               19344   21458   +2114     
================================================
+ Hits                13159   15036   +1877     
- Misses               5397    5570    +173     
- Partials              788     852     +64     

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