Baseline MAINTAINERS, CODEOWNERS, and external collaborator permissions

[dblock]

Follow opensearch-project/.github#125 to baseline MAINTAINERS, CODEOWNERS, and external collaborator permissions.

Close this issue when:

1. MAINTAINERS.md has the correct list of project maintainers.
2. CODEOWNERS exists and has the correct list of aliases.
3. Repo permissions only contain individual aliases as collaborators with maintain rights, admin, and triage teams.
4. All other teams are removed from repo permissions.

If this repo's permissions was already baselined, please confirm the above when closing this issue.

[kkhatua]

@dzane17 please update the file to reflect the team correctly:
https://github.com/orgs/opensearch-project/teams/performance-analyzer/members
This needs to be done for RCA as well.

[dblock]

You have the performance analyzer team with 13 members that have maintain access to this repo and a plugins team with 8 members that has admin access. Only folks listed in MAINTAINERS/CODEOWNERS need to have maintain access, and groups don't support external collaborators and therefore should be removed except for admin. Please work with an admin to remove the group, and add individuals.

[praveensameneni]

We will update the MAINTAINERS in the performance analyzer team

[gaiksaya]

The permissions have been updated for this repository!

Here is the snippet

@khushbr @praveensameneni Please verify and close the issue if needed.
Thanks!

[khushbr]

LGTM! Thank you @gaiksaya !

[dblock]

Verified, thanks.