Increase max backend-collect-timeout parameter value

[abmteam]

Hi,
In some machines we have issues like this
fusioninventory/fusioninventory-agent#398, where we need to increase backend-collect-timeout parameter value. (In some cases, we need to set this value to 1800.)

Is it possible to increase the max value in the OptionChecks.nsh (https://github.com/fusioninventory/fusioninventory-agent-windows-installer/blob/develop/NSIS/FusionInventory-Agent/Include/OptionChecks.nsh) file?

Thanks.