fix(goreleaser): support goreleaser v2

fix(internal/cli): use correct path to cli example

chore: remove dep on gocover-cobertura

chore: fix ci workflows

chore: resolve lint issues

chore: better tests

Signed-off-by: Ryan Currah <ryan@currah.ca>

fix github action

error out when GOMOD env value is /dev/null

fix gorleaser, again

fix gorleaser, again