Install dependencies

Author: rffontenelle

.github/workflows/sync.yml

@@ -134,6 +134,13 @@ jobs:
           ref: ${{ env.PYDOC_VERSION }}
           path: ${{ env.PYDOC_LANG_DIR }}
 
+      - uses: actions/setup-python@v6
+        with:
+          python-version: ${{ inputs.version }}
+          allow-prereleases: true
+          cache: 'pip'
+          pip-install: -r requirements.txt
+
       - name: Download translation artifacts
         uses: actions/download-artifact@v8
         with: