Can't use provider region from serverless.yml

[jhonathanvini]

https://github.com/nicka/serverless-plugin-diff/blob/70ee590cc1b9febae75f1b3ed22f1fe0eb25b3ad/lib/index.js#L28

Hello, thanks for a nice plugin :)

I am trying to automate some of our tasks, but for that, I'd need the diff to run without the need to pass the --region myregion in the command.

While looking at the code, I noticed it uses this.serverless.service.defaults.region, but I can't find a way to set it, how do I set this default region?

Or in this case, should the line be changed to this.serverless.service.provider.region, or maybe add the provider region to the possible value origins?