install macOS dependencies

Author: v-soujanya

.github/actions/run-tests/action.yml

@@ -16,6 +16,11 @@ inputs:
 runs:
   using: 'composite'
   steps:
+    - name: Install gettext (fix libintl)
+      run: |
+        brew install gettext
+        brew link --force gettext
+      shell: bash
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ inputs.python-version }}