Add new maintainers

[psychbot]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.47%. Comparing base (aabe211) to head (b1e28a5).

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #634      +/-   ##
============================================
+ Coverage     69.32%   69.47%   +0.14%     
- Complexity      371      373       +2     
============================================
  Files            44       44              
  Lines          2706     2706              
  Branches        172      172              
============================================
+ Hits           1876     1880       +4     
+ Misses          727      725       -2     
+ Partials        103      101       -2     

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[bbarani]

@getsaurabh02 @khushbr maintainers.md file and codeowners should reflect the same list and none of these new folks are added as maintainers yet. You need to tag @opensearch-project/admins to add them as maintainers before merging this PR. codeowners file should be valid before merging this PR.