Apply updates from cookiecutter (#40)

This automated commit applies the latest updates from our cookiecutters [1] to
this repo.

[1]: https://github.com/hypothesis/cookiecutters

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -81,6 +81,7 @@ jobs:
         with:
           name: coverage
           path: .coverage.*
+          include-hidden-files: true
   Coverage:
     needs: tests
     runs-on: ubuntu-latest