fix(ci): install missing msgcat used for Babel translation update (#38830)

Signed-off-by: hainenber <dotronghai96@gmail.com>
(cherry picked from commit 3506773f51)

.github/workflows/superset-translations.yml

@@ -62,6 +62,10 @@ jobs:
       - name: Setup Python
         if: steps.check.outputs.python
         uses: ./.github/actions/setup-backend/
+
+      - name: Install msgcat
+        run: sudo apt update && sudo apt install gettext
+
       - name: Test babel extraction
         if: steps.check.outputs.python
         run: ./scripts/translations/babel_update.sh