Add support for SSL client certificates in MySQL and Postgres

[lovasoa]

Discussed in #299

^{Originally posted by pettersillander May 2, 2024}
Could implemeting (maybe optional?) encrypted connection between client and server help to ease adoption of SQLpage in diverse environments?

Quite a few networks (even closed) are encrypted connections only nowadays. As all the SQLpage supported dbms's support TLS natively it's seems rather cumbersome to use a tunnel for encryption.

Just wondering this after configuring SQLpage in existing environments...

[lovasoa]

sqlpage/sqlx-oldapi#7

[lovasoa]

@pettersillander , can you test the latest builds and let me know if it works for you ?
The easiest is to test lovasoa/sqlpage:main on docker.

I also updated the documentation: https://github.com/lovasoa/SQLpage/blob/main/configuration.md#database-connection-strings

[pettersillander]

@lovasoa I built main yesterday and tested it at the site. The handshake & connection were succeeded and no errors in logs. So all good for now.