Add missing callbacks to callbacks.rst

[kaushikb11]

What does this PR do?

Add missing callbacks to callbacks.rst

Does your PR introduce any breaking changes? If yes, please list them.

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[codecov]

Codecov Report

Merging #9223 (ad84252) into master (f6614b3) will decrease coverage by 0%.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #9223   +/-   ##
======================================
- Coverage      92%     92%   -0%     
======================================
  Files         176     176           
  Lines       14805   14810    +5     
======================================
+ Hits        13658   13662    +4     
- Misses       1147    1148    +1     

[tchaton]

LGMT !