#1045 specifies the kruise-manager client accept protobuf first

[hatowang]

Ⅰ. Describe what this PR does

Improve performance by replacing json with protobuf.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

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[FillZpp]

There is no need to do this, controller-runtime will automatically choose protobuf for built-in types since v0.7.0 kubernetes-sigs/controller-runtime#1149

[codecov-commenter]

Codecov Report

Merging #1045 (128d891) into master (af222ee) will not change coverage.
The diff coverage is n/a.

❗ Current head 128d891 differs from pull request most recent head 70c2c8a. Consider uploading reports for the commit 70c2c8a to get more accurate results

@@           Coverage Diff           @@
##           master    #1045   +/-   ##
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  Coverage   49.26%   49.26%           
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  Files         125      125           
  Lines       12341    12341           
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  Hits         6080     6080           
  Misses       5321     5321           
  Partials      940      940           

Flag	Coverage Δ
unittests	49.26% <ø> (ø)

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[hatowang]

There is no need to do this, controller-runtime will automatically choose protobuf for built-in types since v0.7.0 kubernetes-sigs/controller-runtime#1149

so good for me！