feat:fix error log format in cache manager

[NewKeyTo]

What type of PR is this?
/kind good-first-issue
/kind feature

What this PR does / why we need it:
fix error log format in cache manager.

Which issue(s) this PR fixes:
Fixes #1776

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[openyurt-bot]

Welcome @NewKeyTo! It looks like this is your first PR to openyurtio/openyurt 🎉

[YTGhost]

/rerun

[codecov]

Codecov Report

Merging #1791 (8a59b83) into master (118f6a3) will increase coverage by 0.00%.
Report is 1 commits behind head on master.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #1791   +/-   ##
=======================================
  Coverage   52.22%   52.23%           
=======================================
  Files         172      172           
  Lines       20840    20840           
=======================================
+ Hits        10883    10885    +2     
+ Misses       8999     8998    -1     
+ Partials      958      957    -1     

Flag	Coverage Δ
unittests	52.23% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
pkg/yurthub/cachemanager/cache_manager.go	71.54% <100.00%> (ø)

... and 1 file with indirect coverage changes

[YTGhost]

/lgtm

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: NewKeyTo, rambohe-ch, YTGhost

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