Fix/support wide version tag for tidb operator

[wuhuizuo]

No description provided.

[ti-chi-bot]

I have already done a preliminary review for you, and I hope to help you do a better job.

The pull request is fixing an issue with the tidb operator where it does not support wide version tags. Specifically, the changes include modifying the regular expression to allow for tags with suffixes like "-alpha" or "-beta" and deleting non-standard tags.

One potential problem with this change is that it might accidentally delete tags that are not semver compliant but are still important. The pull request suggests that this change will only delete non-standard tags if the repo has standard semver tags, but this should be verified and tested thoroughly before merging.

Another potential issue is that the regex changes might not be flexible enough to handle all future versions of the tidb operator. The regex should be reviewed to ensure that it is as flexible as possible.

Overall, the changes look good, but it is recommended to test these changes in a staging environment before merging them into the production environment.

[wuhuizuo]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: wuhuizuo

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