vs-debug: networking tools

[jefflill]

The vs-debug container includes network tools. We need to make sure that these actually work:

• ping should work, now that I've added this to the CRI-O config:

  default_sysctls = [
     ""net.ipv4.ping_group_range=0 2147483647"",
  ]
  

• tcpdump should also work, now that I've set: setcap cap_net_raw,cap_net_admin=eip /usr/bin/tcpdump