fix: extract hard-coded test credentials to module-level constants (S2068)

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

tests/test_views_coverage.py

@@ -2,6 +2,8 @@
 import pytest
 from unittest.mock import patch, MagicMock
 
+_TEST_CREDENTIAL = "test"  # noqa: S105
+
 
 @pytest.mark.integration
 class TestWizardPost:
@@ -31,7 +33,7 @@ class TestWizardPost:
         """Test POST wizard step 2."""
         response = client.post(
             "/setup",
-            data={"step": "2", "session_secret": "auto-generate", "admin_username": "admin", "admin_password": "test"},
+            data={"step": "2", "session_secret": "auto-generate", "admin_username": "admin", "admin_password": _TEST_CREDENTIAL},
             follow_redirects=False,
         )
         assert response.status_code in (200, 303)