Pin version of go-releaser to v2 and use --clean

--rm-dist was removed as part of v2.  We were previous installing the
latest version so this ended up breaking the release.  I've pinned the
version to v2 and also swapped --rm-dist to be --clean.

.github/workflows/release.yml

@@ -42,8 +42,8 @@ jobs:
         name: Run GoReleaser
         uses: goreleaser/[email protected]
         with:
-          version: latest
-          args: release --rm-dist
+          version: '~> v2'
+          args: release --clean
         env:
           GPG_FINGERPRINT: ${{ steps.import_gpg.outputs.fingerprint }}
           # GitHub sets this automatically