Fix wrong environment variable for tag (#41)

Author: alcaeus

tag-version/action.yml

@@ -54,5 +54,5 @@ runs:
  git push origin tag $TAG
  echo "Pushed tag: ${{ env.TAG }}" >> $GITHUB_STEP_SUMMARY
  else
- echo "Created tag (no push): ${{ env.Tag }}" >> $GITHUB_STEP_SUMMARY
+ echo "Created tag (no push): ${{ env.TAG }}" >> $GITHUB_STEP_SUMMARY
  fi