[Fix] missing actuator dependency and port error in examples http

[aFlyBird0]

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 #4506 (4a0bf27) into master (85fec70) will decrease coverage by 0.15%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4506      +/-   ##
============================================
- Coverage     68.06%   67.92%   -0.15%     
+ Complexity     7577     7571       -6     
============================================
  Files          1029     1029              
  Lines         29401    29390      -11     
  Branches       2659     2655       -4     
============================================
- Hits          20013    19963      -50     
- Misses         7801     7841      +40     
+ Partials       1587     1586       -1     

see 19 files with indirect coverage changes

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