[GLUTEN-6887][VL] Daily Update Velox Version (2024_08_31) (apache#7070)

Upstream Velox's New Commits:

ede7d0bff by Hongze Zhang, Code cleanup to use concept serial / parallel to replace single-threaded / multi-threaded as task execution modes (10792)
7af17de56 by Jia Ke, Improve the FlushPolicyFactory to make the client can specify flush policy (8864)
4499332be by Chengcheng Jin, Fix Operator outputBatchRows may overflow (10868)

cpp/velox/compute/WholeStageResultIterator.cc

@@ -96,7 +96,7 @@ WholeStageResultIterator::WholeStageResultIterator(
       0,
       std::move(queryCtx),
       velox::exec::Task::ExecutionMode::kSerial);
-  if (!task_->supportsSingleThreadedExecution()) {
+  if (!task_->supportSerialExecutionMode()) {
     throw std::runtime_error("Task doesn't support single thread execution: " + planNode->toString());
   }
   auto fileSystem = velox::filesystems::getFileSystem(spillDir, nullptr);

ep/build-velox/src/get_velox.sh

@@ -17,7 +17,7 @@
 set -exu
 
 VELOX_REPO=https://github.com/oap-project/velox.git
-VELOX_BRANCH=2024_08_28_fix
+VELOX_BRANCH=2024_08_31
 VELOX_HOME=""
 
 OS=`uname -s`