Include requirements for matrix building + single-build for default

Author: CoMPaTech

.github/workflows/verify.yml

@@ -213,8 +213,8 @@ jobs:
     runs-on: ubuntu-latest
     needs: 
       - prepare
-      - mypy
       - pytest
+    #  - mypy # Re-instate mypy when we are ready
     steps:
       - name: Check out committed code
         uses: actions/checkout@v4