fix test

Author: matusdrobuliak66

services/resource-usage-tracker/src/simcore_service_resource_usage_tracker/services/process_message_running_service.py

@@ -302,7 +302,7 @@ async def _process_stop_event(
         )
         _transaction_status = (
             CreditTransactionStatus.BILLED
-            if wallet_total_credits.available_osparc_credits - computed_credits > 0
+            if wallet_total_credits.available_osparc_credits - computed_credits >= 0
             else CreditTransactionStatus.IN_DEBT
         )
         # Adjust the status if the platform status is not OK

services/resource-usage-tracker/tests/unit/with_dbs/test_process_rabbitmq_message_with_billing.py

@@ -240,7 +240,7 @@ async def test_process_event_functions(
         postgres_db, msg.service_run_id, modified_at
     )
     assert output.osparc_credits < first_credits_used
-    assert output.transaction_status == "BILLED"
+    assert output.transaction_status == "IN_DEBT"
 
     async for attempt in AsyncRetrying(
         wait=wait_fixed(0.1),