Add Ed25519 to trace output

Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3585)

ssl/t1_trce.c

@@ -534,6 +534,7 @@ static ssl_trace_tbl ssl_sigalg_tbl[] = {
     {TLSEXT_SIGALG_ecdsa_secp384r1_sha384, "ecdsa_secp384r1_sha384"},
     {TLSEXT_SIGALG_ecdsa_secp521r1_sha512, "ecdsa_secp521r1_sha512"},
     {TLSEXT_SIGALG_ecdsa_sha224, "ecdsa_sha224"},
+    {TLSEXT_SIGALG_ed25519, "ed25519"},
     {TLSEXT_SIGALG_ecdsa_sha1, "ecdsa_sha1"},
     {TLSEXT_SIGALG_rsa_pss_sha256, "rsa_pss_sha256"},
     {TLSEXT_SIGALG_rsa_pss_sha384, "rsa_pss_sha384"},