team/tidb: promote fixdb and elsa0520 as committer

[winoros]

Just as the title said

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: jackysp, qw4990 Once this PR has been reviewed and has the lgtm label, please assign zhangyangyu for approval. For more information see the Kubernetes Code Review Process.

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Needs approval from an approver in each of these files: - ~~[teams/tidb/OWNERS](https://github.com/pingcap/community/blob/master/teams/tidb/OWNERS)~~ [jackysp,qw4990] - **[votes/OWNERS](https://github.com/pingcap/community/blob/master/votes/OWNERS)** Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2023-12-05 05:59:41.617158571 +0000 UTC m=+1507210.282384768: :ballot_box_with_check: agreed by qw4990.
• 2023-12-05 06:03:53.36219393 +0000 UTC m=+1507462.027420124: :heavy_multiplication_x::repeat: reset by winoros.
• 2023-12-05 06:12:09.969569548 +0000 UTC m=+1507958.634795743: :ballot_box_with_check: agreed by jackysp.

[winoros]

@zhangyangyu Please help to approve it