add run syncing before assertions

tests/test_e2e.py

@@ -21,6 +21,8 @@ def test_e2e(cfg, trainer):
 
     npt_run = neptune.init_run(custom_run_id=custom_run_id)
 
+    npt_run.sync()
+
     assert npt_run.exists("training/config")
 
     assert npt_run.exists("model/checkpoints/checkpoint_iter_0")