feat(s2n-quic): expose configuration options for congestion control #4544

Job	Run time
env	8s
s2n-quic-qns (debug)	1m 57s
s2n-quic-qns (release)	6m 18s
h3spec (s2n-tls)	15s
attack (udp)	5m 28s
bench	13m 41s
h3spec (rustls)	18s
interop (aioquic, s2n-quic)	16m 8s
interop (chrome, s2n-quic)	5m 33s
perf (s2n-quic, s2n-quic)	1m 13s
perf (s2n-quic-null, s2n-quic-null)	49s
interop (go-x-net, s2n-quic)	11m 42s
interop (kwik, s2n-quic)	14m 0s
interop (lsquic, s2n-quic)	12m 38s
interop (msquic, s2n-quic)	17m 29s
interop (mvfst, s2n-quic)	11m 35s
interop (neqo, s2n-quic)	14m 53s
interop (ngtcp2, s2n-quic)	14m 39s
interop (picoquic, s2n-quic)	15m 47s
interop (quic-go, s2n-quic)	13m 2s
interop (quiche, s2n-quic)	18m 44s
interop (quinn, s2n-quic)	12m 54s
interop (s2n-quic, aioquic)	13m 34s
interop (s2n-quic, go-x-net)	11m 19s
interop (s2n-quic, haproxy)	11m 10s
interop (s2n-quic, kwik)	12m 9s
interop (s2n-quic, lsquic)	11m 16s
interop (s2n-quic, msquic)	11m 34s
interop (s2n-quic, mvfst)	13m 13s
interop (s2n-quic, neqo)	12m 32s
interop (s2n-quic, nginx)	10m 50s
interop (s2n-quic, ngtcp2)	11m 55s
interop (s2n-quic, picoquic)	11m 36s
interop (s2n-quic, quic-go)	10m 42s
interop (s2n-quic, quiche)	11m 19s
interop (s2n-quic, quinn)	10m 47s
interop (s2n-quic, s2n-quic)	12m 6s
interop (s2n-quic, s2n-quic-rustls)	12m 29s
interop (s2n-quic, xquic)	11m 41s
interop (s2n-quic-rustls, s2n-quic)	12m 49s
interop (xquic, s2n-quic)	16m 18s
perf-report	10s
interop-report	15s
	7h 18m 55s

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