neqo-crypto: use SSL_PeerCertificateChainDER #3370

Job	Run time
Build & test (ubuntu-latest, 1.76.0, debug)	1m 58s
Build & test (ubuntu-latest, stable, debug)	1m 11s
Build & test (ubuntu-latest, nightly, debug)	1m 41s
Build & test (macos-14, 1.76.0, debug)	2m 48s
Build & test (macos-14, stable, debug)	3m 53s
Build & test (macos-14, nightly, debug)	2m 59s
Build & test (windows-latest, 1.76.0, debug)	22m 5s
Build & test (windows-latest, stable, debug)	23m 44s
Build & test (windows-latest, nightly, debug)	22m 53s
Build & test (ubuntu-latest, stable, release)	1m 17s
Benchmark	0s
	1h 24m 29s

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