Use nodejs-sql-driver as driver name in telemetry

Changed from '@databricks/sql' to 'nodejs-sql-driver' to match
JDBC driver naming convention. Added DRIVER_NAME constant to types.ts.

Author: samikshya-db

lib/DBSQLClient.ts

@@ -31,7 +31,7 @@ import TelemetryEventEmitter from './telemetry/TelemetryEventEmitter';
 import MetricsAggregator from './telemetry/MetricsAggregator';
 import DatabricksTelemetryExporter from './telemetry/DatabricksTelemetryExporter';
 import { CircuitBreakerRegistry } from './telemetry/CircuitBreaker';
-import { DriverConfiguration } from './telemetry/types';
+import { DriverConfiguration, DRIVER_NAME } from './telemetry/types';
 import driverVersion from './version';
 
 function prependSlash(str: string): string {
@@ -201,7 +201,7 @@ export default class DBSQLClient extends EventEmitter implements IDBSQLClient, I
   private buildDriverConfiguration(): DriverConfiguration {
     return {
       driverVersion,
-      driverName: '@databricks/sql',
+      driverName: DRIVER_NAME,
       nodeVersion: process.version,
       platform: process.platform,
       osVersion: os.release(),

lib/telemetry/types.ts

@@ -25,6 +25,11 @@ export enum TelemetryEventType {
   ERROR = 'error',
 }
 
+/**
+ * Driver name constant for telemetry
+ */
+export const DRIVER_NAME = 'nodejs-sql-driver';
+
 /**
  * Configuration for telemetry components
  */