add license for admin dependency micrometer

[tomsun28]

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.

associated pr #4336

• add license for admin dependency micrometer
• set management endpoints default enable false

[codecov-commenter]

Codecov Report

Merging #4409 (bda3441) into master (12a2c19) will increase coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4409      +/-   ##
============================================
+ Coverage     67.97%   68.01%   +0.03%     
- Complexity     7549     7550       +1     
============================================
  Files          1027     1027              
  Lines         29316    29316              
  Branches       2641     2641              
============================================
+ Hits          19928    19938      +10     
+ Misses         7811     7799      -12     
- Partials       1577     1579       +2     

see 2 files with indirect coverage changes

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