fixup! feature: add CI/CD github workflow configuration

Author: unsektor

.github/workflows/ci.yaml

@@ -83,6 +83,9 @@ jobs:
     - name: Install mypy
       run: pip install mypy
 
+    - name: Install dependencies
+      run: pip install -e . --extra-index-url https://source.md.land/python/
+
     - name: Type checking
       run: |
         export PYTHONPATH="$(pwd -P)/lib:$PYTHONPATH"