Refactor GitHub Actions workflow to install Poetry directly

- Replaced the use of the `snok/install-poetry` action with direct installation commands for Poetry.
- Configured Poetry to create virtual environments in the project directory, enhancing dependency management.

Author: marwaneltoukhy

.github/workflows/test.yml

@@ -23,11 +23,14 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Install Poetry
-      uses: snok/install-poetry@v1
-      with:
-        version: latest
-        virtualenvs-create: true
-        virtualenvs-in-project: true
+      run: |
+        python -m pip install --upgrade pip
+        pip install poetry
+
+    - name: Configure Poetry
+      run: |
+        poetry config virtualenvs.create true
+        poetry config virtualenvs.in-project true
 
     - name: Load cached venv
       id: cached-poetry-dependencies