removed direct invocation of setup.py from CI due to deprecation

Author: danielhass

.github/workflows/ci.yml

@@ -71,8 +71,7 @@ jobs:
         run: |
             python -m pip install --upgrade pip
             pip install -U -r requirements.txt
-            pip install pytest requests
-            python setup.py install
+            pip install pytest requests setuptools .
             rm -rf ./timetagger ./build ./egg-info
       - name: Test with pytest
         shell: bash