Fix sometimes flaky program filter test bug (#3364)

Author: jkachel

b2b/factories.py

@@ -35,7 +35,7 @@ class OrganizationPageFactory(wagtail_factories.PageFactory):
     """OrganizationPage factory class"""
 
     name = LazyAttribute(lambda _: FAKE.unique.company())
-    org_key = LazyAttribute(lambda _: FAKE.unique.text(max_nb_chars=5))
+    org_key = LazyAttribute(lambda _: "".join(FAKE.unique.random_letters(length=5)))
     org_key_prefix = UAI_COURSEWARE_ID_PREFIX
     description = LazyAttribute(lambda _: FAKE.unique.text())
     logo = None

conftest.py

@@ -84,4 +84,5 @@ def pytest_configure(config):
 @pytest.fixture(autouse=True, scope="module")
 def fake() -> Faker:
     """Fixture to provide a Faker instance"""
+
     return Faker()