fix: change type from int to float for heartbeat period

[misaert]

According to the MySQL documentation, the heartbeat period configuration permits to have a float type:

The heartbeat interval interval is a decimal value having the range 0 to 4294967 seconds and a resolution in milliseconds; the smallest nonzero value is 0.001.

[krowinski]

tx for mr

Yes when I read documentation I seen this as float but I didn't see any real life case when you need this higher seconds

Do you have any case that need this ?

also there is

       if (0 !== Config::getHeartbeatPeriod()) {
            // master_heartbeat_period is in nanoseconds
            $this->execute('SET @master_heartbeat_period = ' . Config::getHeartbeatPeriod() * 1000000000);
        }

[misaert]

In fact, I need to define the heartbeat period to 0.001 to accelerate my feature test. It permits to finish it to 0.20s instead 1.15s.

Are you ok to change it?

[krowinski]

ok

[misaert]

Thanks. And I want to say you have done a great work with this package 👍