add a new permanently hard-coded seed node

[handshake-enthusiast]

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16 GiB and 4 vCPU using the latest generation general purpose Amazon EC2 M7g instance in Mumbai. Status Page and Live Status Badge:

See https://github.com/opensystm/handshake-micro-grants/issues/5 for more details.

[handshake-enthusiast]

This PR is similar to https://github.com/handshake-org/hsd/pull/858. However, seeds in hnsd repo do not contain cleartext duplicates like in the hsd repo. Those duplicates were initially added here and the comment // Same nodes as above, but clearnet was added here. I'll study what those brontide ports are, e.g. https://github.com/handshake-org/hsd/issues/315, but may be someone could provide a competent answer whether those "cleartext" duplicates were intentionally omitted or should actually be specified in hnsd as well.