better bump message (#12)

Author: martinemde

.github/workflows/tag.yml

@@ -45,7 +45,7 @@ jobs:
         run: |
           git config user.name "github-actions"
           git config user.email "[email protected]"
-          git commit -am "Bump version"
+          git commit -am "Bump version to ${{ steps.version.outputs.bump }}"
           VERSION=$(ruby -e "require './lib/${{ env.GEM_NAME }}/version'; puts ${{ env.GEM_CLASS_NAME }}::VERSION")
           git tag "v$VERSION"
           git push --follow-tags