fix: otlp json encoding

Regression introduced in commit evanderkoogh@bd0a46a after api change in open-telemetry/opentelemetry-js#4220

Author: gdaszuta

src/exporter.ts

@@ -43,7 +43,10 @@ export class OTLPExporter implements SpanExporter {
 	}
 
 	send(items: any[], onSuccess: () => void, onError: (error: OTLPExporterError) => void): void {
-		const exportMessage = createExportTraceServiceRequest(items)
+		const exportMessage = createExportTraceServiceRequest(items, {
+			useHex: true,
+			useLongBits: false,
+		})
 		const body = JSON.stringify(exportMessage)
 		const params: RequestInit = {
 			method: 'POST',