Don't try to use poetry run as the shell

Signed-off-by: Fabrice Normandin <[email protected]>

.github/workflows/build.yml

@@ -92,8 +92,7 @@ jobs:
       run: poetry install
 
     - name: Test with pytest
-      shell: poetry run
-      run: pytest -v --cov=project --cov-report=xml --cov-append
+      run: poetry run pytest -v --cov=project --cov-report=xml --cov-append
 
     # TODO: this is taking too long to run, and is failing consistently. Need to debug this before making it part of the CI again.
     # - name: Test with pytest (only slow tests)