Regenerate vtadmin protos.

[arthurschreiber]

Description

This currently breaks all PR builds against main. Seems like we didn't regenerate this file after the most recent dependency update.

Related Issue(s)

Might have been caused by #20088

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

AI Disclosure

[vitess-bot]

Review Checklist

Hello reviewers! 👋 Please follow this checklist when reviewing this Pull Request.

General

• Ensure that the Pull Request has a descriptive title.
• Ensure there is a link to an issue (except for internal cleanup and flaky test fixes), new features should have an RFC that documents use cases and test cases.

Tests

• Bug fixes should have at least one unit or end-to-end test, enhancement and new features should have a sufficient number of tests.

Documentation

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Backward compatibility

• Protobuf changes should be wire-compatible.
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• If a flag is removed, then it should also be removed from vitess-operator and arewefastyet, if used there.
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[Copilot]

Pull request overview

Updates the generated VTAdmin JavaScript protobuf module to align with the current protobufjs dependency/module format used by the vtadmin web app (ESM), unblocking PR builds that currently fail on main.

Changes:

• Regenerates/updates the generated vtadmin.js proto output to use an ESM-compatible protobufjs import.
• Adjusts the protobufjs import path to the minimal.js entrypoint.