Add --config path for .semrelrc location

[CandiedCode]

For my golang project structure layout, my ci/cd related scripts/configs are located in /build

I do this with other tools such as

golangci-lint run --config build/golangci-lint/.golangci.yml
goreleaser --config build/goreleaser/.goreleaser.yaml

I would like a flag option to set the config file location via --config.

[christophwitzko]

This is a great idea! 👍

[soohoowoohoo]

@christophwitzko @cliedeman I'd be interested in working on this. Is this fine with y'all?

[christophwitzko]

@soohoowoohoo Sure, feel free to open a PR. ☺️ 🙏