SIENTIAPDE-1199

Update Ingestor project name and metadata keys to lowercase for consistency

- Changed project_name, workflow_name, and schema_name from uppercase to lowercase in Ingestor class and corresponding unit tests.

tests/unit/test_ingestor.py

@@ -49,8 +49,8 @@ def test___init__(notification_handler, getenv):
     assert ingestor.metadata == {
         "model_id": "-",
         "model_name": "-",
-        "workflow_name": "OPC_INGESTOR",
-        "schema_name": "OPC_INGESTOR",
+        "workflow_name": "opc_ingestor",
+        "schema_name": "opc_ingestor",
         "pod_id": "localhost1"
     }
 
@@ -58,7 +58,7 @@ def test___init__(notification_handler, getenv):
         connection_string="mongodb://sientia:sientia@localhost:27017",
         database="sientia",
         logger=ingestor.logger,
-        project_name="OPC_INGESTOR"
+        project_name="opc_ingestor"
     )