[VL] Build issue related to Arrow

[philo-he]

Problem description

Just FYI.
The following build issue can occur when Velox unexpectedly builds its own Arrow. The fix is to remove the Arrow installation step from Velox's setup script, like
sed -i "s|run_and_time install_arrow||g" scripts/setup-ubuntu.sh

CMake Error at cmake_modules/BuildUtils.cmake:297 (target_link_libraries):
  Target "arrow_testing_objlib" links to:

    Boost::process

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  src/arrow/CMakeLists.txt:1124 (add_arrow_lib)

System information

N/A

CMake log

[Smallfu666]

take