refactor checkUserPassword, not print known error stack log when startup

[tomsun28]

refactor checkUserPassword, do not print known error stack log when startup

Make sure that:

• You have read the contribution guidelines.
• You submit test cases (unit or integration tests) that back your changes.
• Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.

[codecov-commenter]

Codecov Report

Merging #4697 (bdab13a) into master (f6c5d80) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #4697      +/-   ##
============================================
- Coverage     66.45%   66.45%   -0.01%     
+ Complexity     8004     8003       -1     
============================================
  Files          1109     1109              
  Lines         32041    32044       +3     
  Branches       2896     2896              
============================================
  Hits          21294    21294              
- Misses         9057     9060       +3     
  Partials       1690     1690              

Impacted Files	Coverage Δ
...enyu/admin/controller/DashboardUserController.java	63.88% <0.00%> (-3.76%)	⬇️
...java/org/apache/shenyu/admin/utils/ResultUtil.java	75.00% <0.00%> (-25.00%)	⬇️

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