[ISSUE #9999] Mark custom delay time messages with delay type

[yx9o]

Fixes #9999 .

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.88%. Comparing base (36adf12) to head (3292af9).

Files with missing lines	Patch %	Lines
...mq/client/impl/producer/DefaultMQProducerImpl.java	0.00%	0 Missing and 5 partials ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #10000      +/-   ##
=============================================
- Coverage      48.96%   48.88%   -0.08%     
+ Complexity     13353    13331      -22     
=============================================
  Files           1373     1373              
  Lines          99701    99705       +4     
  Branches       12889    12893       +4     
=============================================
- Hits           48814    48740      -74     
- Misses         44980    45043      +63     
- Partials        5907     5922      +15     

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