Release v20240219

See merge request !92

Support for DNS-over-QUIC

Closes #22

See merge request !75

Unfortunately, we are not yet able to detect the misconfiguration [1]
ourselves, so when `%NO_TICKETS` is set in the priority string,
`zero_rtt` also needs to be explicitly set to `false`, otherwise Shotgun
misbehaves.

[1] See GnuTLS mailing list: <https://lists.gnutls.org/pipermail/gnutls-help/2024-January/004844.html>

This merges the two counters into conn_handshakes, as they are mutually
exclusive anyway. Configuration can still refer to 'tcp_hs' for
compatibility, but the preferred way is now 'conn_hs'. Note that
'tcp_hs' will also work for QUIC.

... instead of upon handshake confirmation.

When containerized, Shotgun would randomly fail with `Undefined symbol:
output_dnssim_new`. When I add this assertion, it somehow seems to work
reliably, so I assume that LuaJIT might be throwing away the seemingly
unused result of `loader.load` sometimes, which causes the issue.

Another solution *might* be just using the returned namespace directly,
but I don't really want to go rewriting the whole `.lua` file for this,
if the assert works.

This fixes some cases, although still not perfect and does not work 100%