test: set location in BigQueryOptions to US in ITBigQueryTest

Author: blakeli0

java-bigquery/google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/it/ITBigQueryTest.java

@@ -7801,6 +7801,7 @@ public void testOpenTelemetryTracingDatasets() {
         BigQueryOptions.newBuilder()
             .setEnableOpenTelemetryTracing(true)
             .setOpenTelemetryTracer(tracer)
+            .setLocation("US")
             .build();
     BigQuery bigquery = otelOptions.getService();