Add New Listener Callback for DoS Mode

[vgmahajanshetty]

Description

Resolved #3717.
To support health probe, added new event for listeners. This event will be triggered for all opted in listeners.

Testing

Did basic tests manually.

Documentation

Is there any documentation impact for this change?

[codecov]

Codecov Report

Attention: Patch coverage is 93.61702% with 3 lines in your changes missing coverage. Please review.

Project coverage is 86.06%. Comparing base (618c860) to head (7de8330).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
src/core/listener.c	88.88%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4868      +/-   ##
==========================================
- Coverage   87.01%   86.06%   -0.96%     
==========================================
  Files          56       56              
  Lines       17685    17732      +47     
==========================================
- Hits        15389    15261     -128     
- Misses       2296     2471     +175     

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[nibanks]

LGTM! Thanks!

[nibanks]

Looks like there are build failures. Please take a look.

[nibanks]

You need to fix the Rust and C# layers too because of the API change.