chore: Download kustomize directly to avoid rate limit

[codecov[bot]]

Codecov Report

Merging #32 (d4248f2) into main (932a823) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #32   +/-   ##
=======================================
  Coverage   48.17%   48.17%           
=======================================
  Files           4        4           
  Lines         465      465           
=======================================
  Hits          224      224           
  Misses        209      209           
  Partials       32       32           

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[fengye87]

@scuzhanglei This should be a "chore" type patch

[scuzhanglei]

fixed