test: fix ITDatabaseRolePermissionTest.roleWithNoPermissions to use correct SpannerOptions (#2305)

Author: rajatbhatta

google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITDatabaseRolePermissionTest.java

@@ -159,7 +159,8 @@ public void roleWithNoPermissions() throws Exception {
             .get(5, TimeUnit.MINUTES);
 
     // Connect to db with dbRoleOrphan
-    SpannerOptions options = SpannerOptions.newBuilder().setDatabaseRole(dbRoleOrphan).build();
+    SpannerOptions options =
+        testHelper.getOptions().toBuilder().setDatabaseRole(dbRoleOrphan).build();
 
     Spanner spanner = options.getService();
     DatabaseClient dbClient = spanner.getDatabaseClient(createdDatabase.getId());