Update chart path in git add command

.github/workflows/helm-chart-release.yml

@@ -36,7 +36,7 @@ jobs:
         run: |
           git config --global user.name 'GitHub Actions'
           git config --global user.email '[email protected]'
-          git add chart/Chart.yaml
+          git add charts/libretranslate/Chart.yaml
           git commit -m "Bump chart version"
           git push