Update seed list

[dboreham]

The seed list generated by libra-config is out of date. Of the list, only the first two are up and listening:

    seed_addrs:
      1017ce1abc30e356660b8b0542275f2fb4373b5f8a82b7800a5b3fdf718ae55f:
        - /ip4/70.15.242.6/tcp/6182/noise-ik/0x1017ce1abc30e356660b8b0542275f2fb4373b5f8a82b7800a5b3fdf718ae55f/handshake/0
      c04300abebc472cdea0e1f7160ece6c09e49145c2b5b72318bdc43c11aceb203:
        - /ip4/172.104.211.8/tcp/6182/noise-ik/0xc04300abebc472cdea0e1f7160ece6c09e49145c2b5b72318bdc43c11aceb203/handshake/0
      febaed185e04d0f158998b39501796d0b79235399796e96a1c9a3fac2f31ab57:
        - /ip4/38.242.137.192/tcp/6182/noise-ik/0xfebaed185e04d0f158998b39501796d0b79235399796e96a1c9a3fac2f31ab57/handshake/0
      8ad0747d37cacdfb725a5de237fa2584342b9aabc28446064031166b371da938:
        - /ip4/160.202.129.29/tcp/6182/noise-ik/0x8ad0747d37cacdfb725a5de237fa2584342b9aabc28446064031166b371da938/handshake/0
      9b07a7d587d5f515f4b77a2f751d0ca02e7a8cfb8f5550b26e5498d480cbd960:
        - /ip4/209.38.172.53/tcp/6182/noise-ik/0x9b07a7d587d5f515f4b77a2f751d0ca02e7a8cfb8f5550b26e5498d480cbd960/handshake/0
      dcab287b256bb1e90cda2537553ee19cac195ce67c2fefc7ff25b8aaf2368e6d:
        - /ip4/222.101.31.242/tcp/6182/noise-ik/0xdcab287b256bb1e90cda2537553ee19cac195ce67c2fefc7ff25b8aaf2368e6d/handshake/0
      6ead5e1c7fe9f7c09e965f230cf8cf3cbbcacc33a562737aebd7387a90b04a43:
        - /ip4/65.109.80.179/tcp/6182/noise-ik/0x6ead5e1c7fe9f7c09e965f230cf8cf3cbbcacc33a562737aebd7387a90b04a43/handshake/0