bindinfo: garbage collect deleted bind records

[eurekaka]

What problem does this PR solve?

Issue Number: close #26191

Problem Summary:

GC bind record with deleted status.

What is changed and how it works?

What's Changed:

• add a ticker to trigger the gc in the background loop
• expose bind owner, and only do gc in bind owner

Check List

Tests

• Unit test
• Manual test: start 2 tidb servers, and create / drop a global binding on one tidb, then observe the results of show global bindings and select * from mysql.bind_info on 2 tidb servers. Check that, the "deleted" bind record in mysql.bind_info is removed after 5.5 minutes.

Side effects

N/A

Documentation

N/A

Release note

• Garbage collect deleted bind records

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• Reminiscent
• qw4990

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

The full list of commands accepted by this bot can be found here.

Reviewer can indicate their review by submitting an approval review.
Reviewer can cancel approval by submitting a request changes review.

[eurekaka]

/rebuild

[eurekaka]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: a603a54

[winoros]

/merge