[ISSUE #4517]shenyu rule cache test case

[lan-dian]

test shenyu rule cache cases including unit test and integration test

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 #4557 (b734faa) into master (951cfb8) will increase coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4557      +/-   ##
============================================
+ Coverage     68.84%   68.86%   +0.01%     
- Complexity     7728     7736       +8     
============================================
  Files          1033     1033              
  Lines         29575    29575              
  Branches       2673     2673              
============================================
+ Hits          20361    20366       +5     
+ Misses         7614     7612       -2     
+ Partials       1600     1597       -3     

see 5 files with indirect coverage changes

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