Forcefully include POT file in translation branch

Author: webknjaz

.github/workflows/translation.yml

@@ -64,6 +64,7 @@ jobs:
        - name: Commit the POT file to Git
          run: |
            git_hash=$(git rev-parse --short "${GITHUB_SHA}")
+           git add --force locales/messages.pot
            git commit \
              -m "Update messages.pot as of version ${git_hash}" \
              locales/messages.pot