Add statistics for the production of transaction messages.

[kingkh1995]

Which Issue(s) This PR Fixes

Missing statistics when transaction messages are committed

Brief Description

Add statistics for the production of transaction messages.

How Did You Test This Change?

Test cases are updated

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (50974ad) 43.16% compared to head (48bb4e4) 43.18%.
Report is 6 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #7766      +/-   ##
=============================================
+ Coverage      43.16%   43.18%   +0.01%     
- Complexity      9822     9828       +6     
=============================================
  Files           1167     1167              
  Lines          84607    84695      +88     
  Branches       10973    10993      +20     
=============================================
+ Hits           36522    36574      +52     
- Misses         43541    43577      +36     
  Partials        4544     4544              

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