chore: support building arm image by updating to goreleaser v2

[cjc7373]

Description

I'm doing this mainly to add multi-arch support to the docker image (to add arm images). And v2 has a simple config to do it. I have tested it locally with goreleaser release --verbose --snapshot --clean.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Documentation

• the change is mentioned in the ## [Unreleased] section of CHANGELOG.md
• the configuration yaml was changed and the example config in README.adoc was updated
• a usage example was added to README.adoc
• tests for the changes have been implemented (see: Testing your changes)