build: Fix poetry installation and complete workflow fixes

Co-authored-by: alvarolopez <[email protected]>

Author: Copilot

.github/workflows/packaging.yml

@@ -26,7 +26,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install tox tox-gh-actions
-        python -m pip install poetry poetry poetry-plugin-export
+        python -m pip install poetry poetry-plugin-export
 
     - name: Test with tox
       run: tox