Fix venv command

Author: LKajan

.github/workflows/tests.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Install dependencies
         run: |
           apt update && apt install python3-venv -y
-          python3 -m pip .venv --system-site-packages
+          python3 -m venv --system-site-packages .venv
           .venv/bin/pip install -qr requirements-dev.txt
           .venv/bin/pip install .