Add scapy to ANO container

[cliffburdick]

No description provided.

[agirault]

@jjomier @tbirdso what is the guideline when using GPL dependencies in Holohub? This is only for testing, and we're not distributing any containers, so I assume that's ok?

[agirault]

no concern on gpl2 since not distributed. ty

[agirault]

Will wait on #703 first so we can confirm that failures are caught before fixing it. No rush anyway, ty Cliff.

[agirault]

Either way though, this branch doesn't fix it for me:

./dev_container build_and_run adv_networking_bench --no_run --build_args "-D BUILD_TESTING:BOOL=ON"
./dev_container launch --img holohub:adv_networking_bench --docker_opts "-u 0 --privileged" -- bash -c "cd build/adv_networking_bench/ && ctest . --verbose -R adv_networking_bench_dpdk_multi_rx_q_test"

2: 2025-02-25 02:05:48,732 ERROR: Failed to run external script: Command '['/workspace/holohub/applications/adv_networking_bench/cpp/../utils/test_multi_rx_q.py']' returned non-zero exit status 1.
2: Exception in thread Thread-1 (delayed_external_script):
2: Traceback (most recent call last):
2:   File "/usr/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
2:     self.run()
2:   File "/usr/lib/python3.10/threading.py", line 953, in run
2:     self._target(*self._args, **self._kwargs)
2:   File "/workspace/holohub/build/adv_networking_bench/applications/adv_networking_bench/cpp/testing/adv_networking_test_harness.py", line 72, in delayed_external_script
2:     subprocess.run(
2:   File "/usr/lib/python3.10/subprocess.py", line 526, in run
2:     raise CalledProcessError(retcode, process.args,
2: subprocess.CalledProcessError: Command '['/workspace/holohub/applications/adv_networking_bench/cpp/../utils/test_multi_rx_q.py']' returned non-zero exit status 1.