### What changes were proposed in this pull request?

This PR aims to upgrade `mssql-jdbc` to 12.8.0.jre11 and MySQLServer docker image to `mcr.microsoft.com/mssql/server:2022-CU14-ubuntu-22.04`.

### Why are the changes needed?

This is the latest stable version of `mssql-jdbc`,  related release notes:

https://github.com/microsoft/mssql-jdbc/releases/tag/v12.7.0
https://github.com/microsoft/mssql-jdbc/releases/tag/v12.7.1
https://github.com/microsoft/mssql-jdbc/releases/tag/v12.8.0

Some fixed issues:

- Fix to ensure metadata returned follows JDBC data type specs https://github.com/microsoft/mssql-jdbc/pull/2326
- Added token cache map to fix use of unintended auth token for subsequent connections https://github.com/microsoft/mssql-jdbc/pull/2341
- Clear prepared statement handle before reconnect https://github.com/microsoft/mssql-jdbc/pull/2364
- Reset socketTimeout to original value after a successful connection open https://github.com/microsoft/mssql-jdbc/pull/2355
- Clear prepared statement cache when resetting statement pool connection https://github.com/microsoft/mssql-jdbc/pull/2361
- Fixed ClassLoader leak of ActivityCorrelator ThreadLocal https://github.com/microsoft/mssql-jdbc/pull/2366

### Does this PR introduce _any_ user-facing change?

No.
### How was this patch tested?

Pass GA.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #47569 from wayneguow/ms_12_8.

Authored-by: Wei Guo <guow93@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>