Revert driver name back to godatabrickssqlconnector

Server-side validation requires this exact name. Changing to a different
name causes connection failures:
  'Client databricks-sql-go/1.9.0 is not supported for SQL warehouses'

The driver name is validated server-side against a whitelist. We must use
the registered name 'godatabrickssqlconnector' for compatibility.

Note: Telemetry uses 'databricks-sql-go' internally which is fine since
it's not sent to the SQL warehouse endpoint.

Signed-off-by: Samikshya Chand <samikshya.chand@databricks.com>
Signed-off-by: samikshya-chand_data <samikshya.chand@databricks.com>

Author: samikshya-db

internal/config/config.go

@@ -200,7 +200,7 @@ func WithDefaults() *Config {
 		ClientTimeout:             900 * time.Second,
 		PingTimeout:               60 * time.Second,
 		CanUseMultipleCatalogs:    true,
-		DriverName:                "databricks-sql-go",
+		DriverName:                "godatabrickssqlconnector", // Server requires this exact name for validation
 		ThriftProtocol:            "binary",
 		ThriftTransport:           "http",
 		ThriftProtocolVersion:     cli_service.TProtocolVersion_SPARK_CLI_SERVICE_PROTOCOL_V8,