fix markdown linter checkout err

[ABNER-1]

Ⅰ. Describe what this PR does

use checkout v3 in ci job "markdownlint-misspell-shellcheck"

Ⅱ. Does this pull request fix one issue?

fix #1637

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.96%. Comparing base (0d0031a) to head (4e6ffd9).
Report is 38 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1638      +/-   ##
==========================================
+ Coverage   47.91%   48.96%   +1.04%     
==========================================
  Files         162      180      +18     
  Lines       23491    18804    -4687     
==========================================
- Hits        11256     9207    -2049     
+ Misses      11014     8380    -2634     
+ Partials     1221     1217       -4     

Flag	Coverage Δ
unittests	48.96% <ø> (+1.04%)	⬆️

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[furykerry]

/lgtm
/approve

[kruise-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: furykerry

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