Move non-active maintainers to emeritus.

[dblock]

Description

Per #1230 moving inactive maintainers to emeritus.

Sort names alphabetically.

Related Issues

Closes #1230.

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[getsaurabh02]

The BWC test failure is independent of this change.

[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/index-management/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/index-management/backport-2.x
# Create a new branch
git switch --create backport/backport-1233-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 4f3a7d85efe1459822300028a78d476d0560b587
# Push it to GitHub
git push --set-upstream origin backport/backport-1233-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/index-management/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-1233-to-2.x.

[dblock]

I adjusted permissions.

[gaiksaya]

Looks like someone needs to backport this to 2.x branch. The new branches created using 2.x still have old codeowners

[Hailong-am]

Looks like someone needs to backport this to 2.x branch. The new branches created using 2.x still have old codeowners

raise an manual backport 2.x PR #1246