Modify the wrong ConfigMap name in v1.13 node-agent-concurrency docum…

[blackpiglet]

…ent.

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Fixes #(issue)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.66%. Comparing base (3c37c84) to head (ef8f3b5).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7790   +/-   ##
=======================================
  Coverage   58.66%   58.66%           
=======================================
  Files         344      344           
  Lines       28731    28731           
=======================================
  Hits        16854    16854           
  Misses      10448    10448           
  Partials     1429     1429           

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