ssl_mode = skip_verify doesn't work as expected

### What happened? In the _grafana.ini_ configuration file, I have the following setting: `ssl_mode = skip-verify` After the container starts, it throws the following error: _Error: ✗ failed to connect to database: could not read DB CA Cert path "": open : no such file or directory_ When I set the `ca_cert_path` parameter, it works fine. However, the **skip-verify** value is supposed to mean an SSL connection without requiring a CA certificate. ### What did you expect to happen? I expected Grafana to establish an SSL connection to the MySQL database without requiring a CA certificate when `ssl_mode = skip_verify`. ### Did this work before? I don't know. ### How do we reproduce it? 1. Configuration in _grafana.ini_: `ssl_mode = skip-verify` 2. docker build -t grafana:latest . 3. docker run --name grafana -d -p 8080:3000 grafana:latest ### Is the bug inside a dashboard panel? No ### Environment (with versions)? Grafana: grafana/grafana:11.6.3 RDS MySQL: 8.0.42 ### Grafana platform? Docker ### Datasource(s)? _No response_