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.

[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.

[kkhatua]

@dblock there is a Maintainer tag in the team. Shouldn't that be what is reflected in the CODEOWNERS and MAINTAINERS?
The performance analyzer team has folks with committer access so as to reduce the load and improving response time; and we are following the requisite review process of minimum of 2 votes.
(Tagging @praveensameneni )

[praveensameneni]

We got the required number of votes to add new members to the MAINTAINERS list. Will update.

[dblock]

The permissions are incorrect. Please work with an admin to remove both the PA and plugin teams and add individuals from MAINTAINERS.

[gaiksaya]

Permissions updated for this repo as per the maintainers list:

@praveensameneni @khushbr Please verify!

Thanks!

[dblock]

Verified, thx.