Fix publishing with NPM tag without git tag

For reasons beyond my comprehension, when you assign `default` to a
GitHub Action input value, it does _not_ prefill the input with that
value when it is missing. I guess we are changing what `default` means?

.github/workflows/release.yml

@@ -199,8 +199,10 @@ jobs:
         run: |
           git config --global user.name 'github-actions[bot]'
           git config --global user.email 'github-actions[bot]@users.noreply.github.com'
-          npm publish --tag ${{ inputs.npm-tag }} --new-version $(echo $VERSION | sed 's/^v//')
+          npm version --no-git-tag-version $VERSION
+          npm publish --tag $TAG
         if: ${{ !env.ACT }}
         env:
           NPM_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          TAG: ${{ inputs.npm-tag || 'latest' }}
           VERSION: ${{ inputs.new-version || github.ref_name }}