feat(apt): add rsync installation in setup-tools.sh

[klin02]

No description provided.

[poemonsense]

Did you check https://github.com/OpenXiangShan/difftest/actions/runs/19965376038/job/57255877232

It said:

  cd $NOOP_HOME
  apt-get install rsync
  make verilog BOARD=fpgadiff MILL_ARGS="--difftest-config ESBIDUF" -j2
  make -C difftest fpga-release
  shell: sh -e {0}
  env:
    NOOP_HOME: /__w/difftest/NutShell
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package rsync
Error: Process completed with exit code 100.

[poemonsense]

Did you check https://github.com/OpenXiangShan/difftest/actions/runs/19965376038/job/57255877232

But it seems CI in xs-env works well. So is rsync correct? Maybe difftest CI fails because of not running apt update. Then we can safely merge this PR

[klin02]

Did you check https://github.com/OpenXiangShan/difftest/actions/runs/19965376038/job/57255877232

But it seems CI in xs-env works well. So is rsync correct? Maybe difftest CI fails because of not running apt update. Then we can safely merge this PR

Yes. Difftest CI fails because of not running apt update. Rsync installs well in xs-env CI, so we can merge it.