Permit to exclude some contributors

[baby-gnu]

Hello.

When using bots like semantic-release we would like to exclude the bot from the contributors.

@myii has a fork to do it but it's hardcoded.

Do you think it could be made configurable?

[gaocegege]

Cool, I think we can make it configurable with a CLI argument, WDYT

/cc @Xuanwo

[Xuanwo]

I think we can make it configurable with a CLI argument

I agree.