Bump k8s modules to 0.28.0

[shu-mutou]

No description provided.

[shu-mutou]

/reopen

[k8s-ci-robot]

@shu-mutou: Reopened this PR.

In response to this:

/reopen

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[codecov]

Codecov Report

Merging #8186 (2a1cede) into master (3529eb5) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8186      +/-   ##
==========================================
- Coverage   42.23%   42.22%   -0.01%     
==========================================
  Files         219      219              
  Lines       12190    12190              
  Branches      179      179              
==========================================
- Hits         5148     5147       -1     
- Misses       6744     6745       +1     
  Partials      298      298              

[maciaszczykm]

/lgtm

[k8s-ci-robot]

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