Add maintainers & code owners

[SuZhou-Joe]

Issue #, if available:

Description of changes:

CheckList:

• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov-commenter]

Codecov Report

Merging #776 (aa71cc9) into main (7c25829) will increase coverage by 0.09%.
The diff coverage is n/a.

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@@             Coverage Diff              @@
##               main     #776      +/-   ##
============================================
+ Coverage     75.41%   75.51%   +0.09%     
- Complexity     2585     2591       +6     
============================================
  Files           335      335              
  Lines         15174    15174              
  Branches       2189     2189              
============================================
+ Hits          11444    11459      +15     
+ Misses         2450     2439      -11     
+ Partials       1280     1276       -4     

see 11 files with indirect coverage changes

[gaiksaya]

Updated the permissions as per this PR:

Thanks!

[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-2.x 2.x
# Navigate to the new working tree
cd .worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-776-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 2c84ffb0944c8955184228076dc1db818c53b4e5
# Push it to GitHub
git push --set-upstream origin backport/backport-776-to-2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-776-to-2.x.