Sst auto user 11.2

[ayurchen]

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• [x] The Jira issue number for this PR is: MDEV-31809

Description

TODO: fill description here

How can this PR be tested?

TODO: modify the automated test suite to verify that the PR causes MariaDB to behave as intended. Consult the documentation on "Writing good test cases".

If the changes are not amenable to automated testing, please explain why not and carefully describe how to test manually.

Basing the PR against the correct MariaDB version

• [ ] This is a new feature and the PR is based against the latest MariaDB development branch.
• [ ] This is a bug fix and the PR is based against the earliest maintained branch in which the bug can be reproduced.

PR quality check

• [ ] I checked the CODING_STANDARDS.md file and my PR conforms to this where appropriate.
• [ ] For any trivial modifications to the PR, I am ok with the reviewer making the changes themselves.

[ayurchen]

@grooverdan please re-review, most of your points were addressed.

[sysprg]

Thanks, merged with the head revision: https://github.com/MariaDB/server/commit/203d337a5533662111cc86505d19cda98b352d06 (prerequisite) https://github.com/MariaDB/server/commit/d9f910bfe9ec3997a3b9e593e2f47ec5a4f80271 https://github.com/MariaDB/server/commit/1aa1a7cf6459e95adc18717cd69fbdde1dcaf7f0 https://github.com/MariaDB/server/commit/a1e5a284fc009ce0a0e66f199d45cc2f4f705c30 https://github.com/MariaDB/server/commit/2ba1a8b878b7549749cee4dc109d7d4c3e66d36a (additional changes) https://github.com/MariaDB/server/commit/29e9ade269d803b6823ec57808e0b7fad28baf9e