disable TTY in CI

Author: chris48s

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
         run: docker-compose up -d web
 
       - name: Run test suite
-        run: docker-compose exec app sh -c "cd /opt/codebuddies && pytest -v"
+        run: docker-compose exec -T app sh -c "cd /opt/codebuddies && pytest -v"
 
       - name: Check Migrations are up-to-date
         run: docker-compose run --rm manage makemigrations --check