[cherry-pick]Move CI workflow to use latest community version of mysql 8.0 (#11493)

[rsajwani]

Description

Cherry-pick #11493

Our current git workflows are not using latest version of mysql. We are using latest version of percona which has not been updated since Aug 2021
https://repo.percona.com/apt/

here is what we are using in our template file
wget https://repo.percona.com/apt/percona-release_latest.$(lsb_release -sc)_all.deb

This is preventing us to test vitess code against that latest version of mysql. We should always run main against the latest version of mysql.

Related Issue(s)

#11511

Checklist

• "Backport me!" label has been added if this change should be backported
• Tests were added or are not required
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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[rsajwani]

vttablet_prscomplex is failing because of changes not related to this PR.