message: ci(ReleaseAction): Improve tag identification
  From "refs/tags/v12.3.0" to "v12.3.0".
diff: @@ -16,7 +16,7 @@ jobs:
  node-version: '12.x'
  - name: Generate Changelog
  run: |
  - echo "# itk.js ${{ github.ref }}" > ./release-notes.md
  + echo "# itk.js ${GITHUB_REF/refs\/tags\//}" > ./release-notes.md
  cat ./doc/release-introduction.md >> ./release-notes.md
  npx conventional-changelog-cli -p angular -r 2 -o ./CHANGELOG.md
  cat ./CHANGELOG.md >> ./release-notes.md
  