Update poetry after venv

.github/workflows/deploy-gh-pages.yml

@@ -50,9 +50,9 @@ jobs:
 
       - name: Generate Platform Markdown
         run: |
-          pip install -U poetry
           poetry install -C openbb_platform --no-interaction
           source openbb_platform/.venv/bin/activate
+          pip install -U poetry
           pip install toml
           python openbb_platform/dev_install.py -e all
           python -c "import openbb; openbb.build()"