fix: polish tests (#112)

* fix: add test coverage

* use xml

* rename codecov yaml

* add yml path

* ignore codeforlife test helpers

* reset pipeline

* reset pipeline

* use updated workflow

* polish_test

* add todo

* Merge branch 'main' into polish_tests

* fix: test job

.github/workflows/main.yml

@@ -13,9 +13,11 @@ on:
 jobs:
   test:
     uses: ocadotechnology/codeforlife-workspace/.github/workflows/test-python-code.yaml@main
+    secrets: inherit
     with:
       # Cannot be set with an env var. Value must match in the release job.
       python-version: 3.8
+      codecov-slug: ocadotechnology/codeforlife-package-python
 
   release:
     concurrency: release