Install gearbox from repository

Author: amol-

.github/workflows/run-tests.yml

@@ -20,6 +20,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install git+https://github.com/TurboGears/tempita
+          pip install git+https://github.com/TurboGears/gearbox
           pip install git+https://github.com/TurboGears/tg2@development
           pip install -U --upgrade-strategy=eager --pre -e .[testing]
       - name: Test with unittest