WL#17209: Switch to OpenSSL 3.5

Several MySQL packages bundle OpenSSL libraries. At present, we rely on
OpenSSL 3.0 which is LTS and supported till September 2026.

OpenSSL's next LTS release OpenSSL 3.5 was GAed in April 2025. It would contain 
several performance enhancements (inherited from fixes made in v3.3) over v3.0. 
In addition, it also bring PQC algorithm support that would be important in 
coming years.

The goal of the worklog is to ensure all 3 major MySQL branches (8.0,
8.4 and trunk) work correctly with OpenSSL 3.5 and no performance
degradation exists. With this ensured, OpenSSL will be upgraded to v3.5 for all MySQL releases that bundle this library.

From the code point of view, some TLS test issues have been detected in
mysql-8.0 branch only. This will be solved by Removing "weak ciphers usage", with backported patch being minimized in order to ensure minimal
impact on legacy behavior.

**FR-01:** Packages that include OpenSSL library should use OpenSSL 3.5.
This can be verified by checking the value of 'Tls_library_version' status variable, see here: 

**FR-02:** Existing TLS test issues in MySQL 8.0 will be solved by removing
weak ciphers usage". This in turn will cause the following changes to MySQL v8.0.x when built with OpenSSL >= 3.5:  
* The following OpenSSL set of ciphers will become blocked:  
  - kDH (Key Exchange Diffie-Hellman)