[release-15.0] Fix flakiness in VTOrc tests (#13489)

[vitess-bot]

Description

This is a backport of #13489

[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.
• If this is a change that users need to know about, please apply the release notes (needs details) label so that merging is blocked unless the summary release notes document is included.
• If a test is added or modified, there should be a documentation on top of the test to explain what the expected behavior is what the test does.

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Bug fixes

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Non-trivial changes

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New/Existing features

• Should be documented, either by modifying the existing documentation or creating new documentation.
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Backward compatibility

• Protobuf changes should be wire-compatible.
• Changes to _vt tables and RPCs need to be backward compatible.
• vtctl command output order should be stable and awk-able.
• RPC changes should be compatible with vitess-operator
• If a flag is removed, then it should also be removed from VTop, if used there.

[vitess-bot]

Hello @GuptaManan100, there are conflicts in this backport.

Please address them in order to merge this Pull Request. You can execute the snippet below to reset your branch and resolve the conflict manually.

Make sure you replace origin by the name of the vitessio/vitess remote

git fetch --all
gh pr checkout 13531 -R vitessio/vitess
git reset --hard origin/release-15.0
git cherry-pick -m 1 888df9228e94b2fad4e57af0f55ce68f8236bf25

[frouioui]

This was just a test - You can ignore this Pull Request.