Bump mop version to 2.10.5.6

[streamnativebot]

This is a PR created by snbot to trigger the check suite in each repository.

[github-actions[bot]]

@streamnativebot:Thanks for your contribution. For this PR, do we need to update docs? (The PR template contains info about doc, which helps others know more about the changes. Can you provide doc-related info in this and future PR descriptions? Thanks)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.20%. Comparing base (365dd13) to head (5d48501).

Additional details and impacted files

@@                 Coverage Diff                 @@
##             branch-2.10.5    #1308      +/-   ##
===================================================
- Coverage            76.22%   76.20%   -0.03%     
  Complexity             978      978              
===================================================
  Files                  111      111              
  Lines                 4350     4350              
  Branches               342      342              
===================================================
- Hits                  3316     3315       -1     
- Misses                 844      846       +2     
+ Partials               190      189       -1     

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