Changes poetry installation script

Author: thepabloaguilar

.github/workflows/test.yml

@@ -20,8 +20,8 @@ jobs:
 
     - name: Install poetry
       run: |
-        curl -sSL \
-          "https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py" | python
+        curl -sSL "https://install.python-poetry.org" | python3
+
         # Adding `poetry` to `$PATH`:
         echo "$HOME/.poetry/bin" >> $GITHUB_PATH