[tf.data] Increase the rollout percentage of `disable_intra_op_parallelism` to 5.

PiperOrigin-RevId: 328182943
Change-Id: I5e5784a9185742f2f1d114d69f23c3d1da412b3f

tensorflow/core/kernels/data/optimize_dataset_op.cc

@@ -84,7 +84,7 @@ void OptimizeDatasetOp::MakeDataset(OpKernelContext* ctx, DatasetBase* input,
     // of the jobs, the experiments will be randomly turned on.
     // clang-format off
     absl::flat_hash_map<string, uint64> live_experiments = {
-        {"disable_intra_op_parallelism", 1}
+        {"disable_intra_op_parallelism", 5}
     };
     // clang-format on
     auto hash_func = [](const string& str) { return Hash64(str); };