chore: consolidate platform split checks

tests/test_devserver.py

@@ -18,6 +18,10 @@ class DevserverSmokeTests(unittest.TestCase):
             for key in (
                 "DATABASE_URL",
                 "DEV_BOOTSTRAP_ENABLED",
+                "GOVOPLAN_DEV_DATABASE_BACKEND",
+                "GOVOPLAN_DEV_DATABASE_URL",
+                "GOVOPLAN_DEV_DATABASE_URL_PGTOOLS",
+                "GOVOPLAN_DATABASE_URL_PGTOOLS",
                 "GOVOPLAN_SERVER_CONFIG",
                 "FILE_STORAGE_LOCAL_ROOT",
                 "MOCK_MAILBOX_DIR",
@@ -26,6 +30,7 @@ class DevserverSmokeTests(unittest.TestCase):
             env["APP_ENV"] = "dev"
             env["CELERY_ENABLED"] = "false"
             env["ENABLED_MODULES"] = "access"
+            env["GOVOPLAN_DEV_DATABASE_BACKEND"] = "sqlite"
             env["PYTHONPATH"] = str(src_root) + (os.pathsep + env["PYTHONPATH"] if env.get("PYTHONPATH") else "")
 
             result = subprocess.run(