Fixed Github ID for maintainer

[Poojita-Raj]

Description

Maintainer's github ID was mixed up.
Rishikesh's ID was set to Bukhtawar. Just fixed that typo.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ No coverage uploaded for pull request base (main@5a39c93). Click here to learn what that means.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #557   +/-   ##
=======================================
  Coverage        ?   83.91%           
  Complexity      ?      555           
=======================================
  Files           ?       61           
  Lines           ?     2046           
  Branches        ?      146           
=======================================
  Hits            ?     1717           
  Misses          ?      230           
  Partials        ?       99           

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[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Navigate to the root of your repository
cd $(git rev-parse --show-toplevel)
# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/asynchronous-search/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/asynchronous-search/backport-2.x
# Create a new branch
git switch --create backport/backport-557-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 6a00f98f1dcc462021ad43bf41c4269df54a7822
# Push it to GitHub
git push --set-upstream origin backport/backport-557-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/asynchronous-search/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-557-to-2.x.