Upgrade setuptools

Author: LKajan

.github/workflows/tests.yml

@@ -32,8 +32,8 @@ jobs:
         run: |
           apt update && apt install python3-venv -y
           python3 -m venv --system-site-packages .venv
-          .venv/bin/pip install -qr requirements-dev.txt
-          .venv/bin/pip install .
+          .venv/bin/pip install -U setuptools
+          .venv/bin/pip install -r requirements-dev.txt
 
       - name: Run tests
         env: