Allow int return values from GET_LOCK MySQL function

[rmbl]

After updating our application to PHP 8.1 and updating our dependencies, all functions that tried to save our event store models failed because of a failure to get a lock. It seems like either the PHP update or an update of a doctrine library changed the return value of the GET_LOCK MySQL function to return int instead of a string.

[prolic]

We don't use doctrine :-p

[rmbl]

shit. true :)

guess it was the update to php 8.1 then

[prolic]

released https://github.com/prooph/pdo-event-store/releases/tag/v1.14.1

thank you!

[rmbl]

thank you for the quick review and release!