fix(goreleaser): don't depend on mise for finding requested goreleaser version

fix(goreleaser): don't depend on mise for finding requested goreleaser version

Not all versions of mise have the tool subcommand available. As was visible in https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/aws-instance-health-exporter/-/merge_requests/336#note_2406751558

This removes that dependency and uses awk to get the requested version from .tool-versions instead. It's too bad renovate doesn't apss it in as an argument.