Update Korean translation

[markruler]

Related: #5625

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[codecov]

Codecov Report

Merging #5631 into master will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5631      +/-   ##
==========================================
- Coverage   44.64%   44.63%   -0.01%     
==========================================
  Files         215      214       -1     
  Lines        9068     9067       -1     
  Branches      113      113              
==========================================
- Hits         4048     4047       -1     
- Misses       4753     4754       +1     
+ Partials      267      266       -1     

Impacted Files	Coverage Δ
...p/backend/integration/metric/common/aggregation.go	88.00% <0.00%> (-2.00%)	⬇️
src/app/frontend/environments/version.ts
src/app/frontend/login/component.ts	76.74% <0.00%> (+1.16%)	⬆️

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[gochist]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gochist, markruler

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• i18n/ko/OWNERS [gochist]

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