MINOR: quic: Call the keylog callback for QUIC openssl wrapper from SSL_CTX_keylog()

SSL_CTX_keylog() is the callback used when the TLS keylog feature is enabled with
tune.ssl.keylog configuration setting. But the QUIC openssl wrapper also needs
to use such a callback to receive the QUIC TLS secrets from the TLS stack.

Add a call to the keylog callback for the QUIC openssl wrapper to SSL_CTX_keylog()
to ensure that it will be called when the TLS keylog feature is enabled.

src/ssl_sock.c

@@ -4486,6 +4486,9 @@ void SSL_CTX_keylog(const SSL *ssl, const char *line)
 	char *lastarg = NULL;
 	char *dst = NULL;
 
+#ifdef USE_QUIC_OPENSSL_COMPAT
+	quic_tls_compat_keylog_callback(ssl, line);
+#endif
 	keylog = SSL_get_ex_data(ssl, ssl_keylog_index);
 	if (!keylog)
 		return;