[ISSUE #9849] Correct ACL cache loader error log in ClusterMetadataService

[majialoong]

Which Issue(s) This PR Fixes

Fixes #9849

Brief Description

Use the correct log message when ACL information fails to load.

How Did You Test This Change?

local test

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 48.27%. Comparing base (d750461) to head (ed6d8db).
⚠️ Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
...proxy/service/metadata/ClusterMetadataService.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #9850      +/-   ##
=============================================
- Coverage      48.36%   48.27%   -0.10%     
+ Complexity     12274    12247      -27     
=============================================
  Files           1314     1314              
  Lines          93875    93876       +1     
  Branches       12040    12041       +1     
=============================================
- Hits           45406    45320      -86     
- Misses         42858    42935      +77     
- Partials        5611     5621      +10     

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[majialoong]

Hi, @dingshuangxi888, @RongtongJin , @lizhimins , PTAL when you get a chance, thanks in advance!

[dingshuangxi888]

LGTM