Push a tag after testing artifacts

[noritakaIzumi]

Purpuse of the feature request

To reduce risk of rolling back tags with doing irreversible operation at last.

Describe the solution you'd like

In .github/workflows/create-new-release.yml, push a tag after building artifacts and before create a release.

Additional context

None.

[noritakaIzumi]

The "push tag" job gets the current version and push a tag at the same time.
We should get the version in one job, and building-artifact jobs will need it, then push a tag and create a release.

      - name: Push a tag
        id: tag
        run: |
          version="$(hatch version)"
          tag="${{ env.tag-prefix }}${version}"
          git tag -a ${tag} -m "New release ${tag} (tagged by github-actions[bot])"
          git push origin ${tag}
          echo "version=${version}" >> $GITHUB_OUTPUT
          echo "tag=${tag}" >> $GITHUB_OUTPUT

to

    - name: Get current version
      id: get-version
      # operations...
    - name: Push a tag
      needs: get-version
      # operations...