add test case for ShenyuSdkClientFactory class.

[omernaci]

Related to #4537

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 #4645 (5636a7d) into master (347b406) will decrease coverage by 0.47%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4645      +/-   ##
============================================
- Coverage     66.91%   66.45%   -0.47%     
- Complexity     8004     8005       +1     
============================================
  Files          1099     1109      +10     
  Lines         31758    31992     +234     
  Branches       2874     2888      +14     
============================================
+ Hits          21252    21259       +7     
- Misses         8829     9056     +227     
  Partials       1677     1677              

see 15 files with indirect coverage changes

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[moremind]

Hi, @omernaci pls check ci work flow

[omernaci]

Hi @moremind, I trigger again, the build is successful now. Can you approve this PR?