chore: locking backend dependency versions

Author: Yamini-Microsoft

requirements.txt

@@ -3,16 +3,16 @@
 
 # === FABRIC DEPLOYMENT SCRIPTS (infra/scripts/fabric/) ===
 # Used by: deploy_fabric_rti.py, fabric_*.py files for Microsoft Fabric configuration deployment
-azure-identity>=1.25.1        # Authentication for Azure services (fabric_api.py, fabric_database.py, fabric_data_ingester.py, fabric_event_hub.py)
-azure-core>=1.29.0            # Core Azure SDK functionality (fabric_api.py, graph_api.py)
-azure-storage-file-datalake>=12.14.0  # OneLake operations and Data Lake Storage (fabric_api.py)
-azure-mgmt-eventhub>=11.2.0   # Event Hub management operations (fabric_event_hub.py)
-azure-kusto-data>=6.0.0       # Kusto/KQL database connections and queries (fabric_database.py, fabric_data_ingester.py)
-azure-kusto-ingest>=6.0.0     # Data ingestion to Kusto databases (fabric_data_ingester.py)
-requests>=2.32.5              # HTTP API calls to Microsoft Fabric REST APIs (fabric_api.py, graph_api.py)
-python-dateutil>=2.8.2        # Date/time utilities (fabric_api.py, graph_api.py)
+azure-identity==1.25.1        # Authentication for Azure services (fabric_api.py, fabric_database.py, fabric_data_ingester.py, fabric_event_hub.py)
+azure-core==1.30.0            # Core Azure SDK functionality (fabric_api.py, graph_api.py)
+azure-storage-file-datalake==12.14.0  # OneLake operations and Data Lake Storage (fabric_api.py)
+azure-mgmt-eventhub==11.2.0   # Event Hub management operations (fabric_event_hub.py)
+azure-kusto-data==6.0.0       # Kusto/KQL database connections and queries (fabric_database.py, fabric_data_ingester.py)
+azure-kusto-ingest==6.0.0     # Data ingestion to Kusto databases (fabric_data_ingester.py)
+requests==2.32.5              # HTTP API calls to Microsoft Fabric REST APIs (fabric_api.py, graph_api.py)
+python-dateutil==2.8.2        # Date/time utilities (fabric_api.py, graph_api.py)
 
 # === EVENT SIMULATION SCRIPTS (infra/scripts/) ===
 # Used by: event_simulator.py, sample_data.py, event_hub_service.py for event generation and simulation
-azure-eventhub>=5.15.1        # Sending events to Event Hub (event_hub_service.py, event_simulator.py)
-pandas>=2.3.3                 # Data manipulation and CSV operations (sample_data.py)
+azure-eventhub==5.15.1        # Sending events to Event Hub (event_hub_service.py, event_simulator.py)
+pandas==2.3.3                 # Data manipulation and CSV operations (sample_data.py)