[ci] Update ci.yml

.github/workflows/ci.yml

@@ -64,9 +64,7 @@ jobs:
           pip install -U pip wheel setuptools
           pip install -r requirements-test.txt
           pip install -U -I -e .
-          pip uninstall -y django
-          pip install -U --force-reinstall --no-deps https://github.com/openwisp/openwisp-controller/tarball/issues/625-device-deactivation
-          pip install ${{ matrix.django-version }}
+          pip install -U ${{ matrix.django-version }}
           sudo npm install -g jshint stylelint
 
           # start influxdb