Run tests from GitHub Actions and Makefile

Also remove a redundant branch in the GitHub Actions.

.github/workflows/pull-request.yml

@@ -2,9 +2,9 @@ name: Django CI
 
 on:
   push:
-    branches: [ main, add-pr-github-actions ]
+    branches: [ main ]
   pull_request:
-    branches: [ main, add-pr-github-actions ]
+    branches: [ main ]
 
 jobs:
   build:
@@ -61,3 +61,8 @@ jobs:
       with:
         build: poetry run ./manage.py migrate --noinput
         start: poetry run ./manage.py runserver
+    - name: Run Unit Tests
+      env:
+        DATABASE_URL: postgresql://govuk_domain:govuk_domain@localhost:5432/govuk_domain
+      run: |
+        poetry run python manage.py test -v 2

Makefile

@@ -24,3 +24,6 @@ migrate-devserver:
 
 clear-db:
 	docker compose down && docker container prune -f && docker volume rm domains-register-a-govuk-domain_postgres-data
+
+test:
+	docker compose run --rm --service-ports --entrypoint "python manage.py test -v 2" web