Update testing.yml

Author: MMathisLab

.github/workflows/testing.yml

@@ -55,8 +55,10 @@ jobs:
         shell: bash -el {0}  # Important: activates the conda environment
         run: |
           conda install pytables==3.8.0 "numpy<2"
+          
       - name: Install and test
         run: |
           python -m pip install --upgrade pip wheel poetry
-          python -m poetry install
-          python -m poetry run dlc-live-test --nodisplay
+          poetry lock
+          poetry install --no-root
+          poetry run dlc-live-test --nodisplay