Add MariaDB compatibility workaround for Arch Linux

[Pr0gramWizard]

On Arch Linux, the mysql client binary is provided by MariaDB, since MySQL has been dropped from the official repositories.
As a result, running mysql --version returns a MariaDB version string and a deprecation warning:

mysql: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb' instead
mysql from 12.0.2-MariaDB, client 15.2 for Linux (x86_64) using readline 5.1

which causes the function MySQLClientPath in internal/cmdutil/cmdutil.go to throw an error:

Error: could not parse server version from: mysql from 12.0.2-MariaDB, client 15.2 for Linux (x86_64) using readline 5.1

when it attempts to parse the version output.

This PR introduces a compatibility workaround.
If the version string contains "MariaDB" it just returns the path with mysql_native_password as the auth method, rather than erroring out.
This is a bandaid solution to allow Arch users (and other distros using MariaDB as a drop in replacement) to proceed without breaking functionality.
In the long term, it may make sense to support MariaDB explicitly instead of relying on this fallback.