Leverage poetry venv to run unit tests

Author: dgarros

.github/workflows/ci.yml

@@ -252,12 +252,12 @@ jobs:
               git config --global credential.helper /usr/local/bin/infrahub-git-credential"
       - name: "Setup Python environment"
         run: |
-          poetry config virtualenvs.create false
+          poetry env use 3.12
           pip install toml invoke
       - name: "Install dependencies"
         run: "poetry install --no-interaction --no-ansi"
       - name: "Unit Tests"
-        run: "invoke backend.test-unit"
+        run: "poetry run invoke backend.test-unit"
       - name: "Coveralls : Unit Tests"
         uses: coverallsapp/github-action@v2
         continue-on-error: true
@@ -757,7 +757,7 @@ jobs:
               git config --global credential.helper /usr/local/bin/infrahub-git-credential"
       - name: "Setup Python environment"
         run: |
-          poetry config virtualenvs.create false
+          poetry env use 3.12
           pip install toml invoke
       - name: "Install dependencies"
         run: "poetry install --no-interaction --no-ansi"