BUILD: quic: Several compiler warns fixes after retry module creation

Such a warning appeared after having added quic_retry.h which includes only
headers for types (quic_cid-t.h, clock-t.h...)

In file included from include/haproxy/quic_retry.h:12,
                 from src/quic_retry.c:5:
include/haproxy/quic_cid-t.h:26:26: error: field ‘seq_num’ has incomplete type
   26 |         struct eb64_node seq_num;

include/haproxy/quic_cid-t.h

@@ -1,6 +1,7 @@
 #ifndef _HAPROXY_QUIC_CID_T_H
 #define _HAPROXY_QUIC_CID_T_H
 
+#include <import/ebtree-t.h>
 #include <haproxy/quic_tp-t.h>
 
 /* QUIC connection ID maximum length for version 1. */

include/haproxy/quic_sock-t.h

@@ -2,6 +2,8 @@
 #define _HAPROXY_QUIC_SOCK_T_H
 #ifdef USE_QUIC
 
+#include <haproxy/buf-t.h>
+
 /* QUIC socket allocation strategy. */
 enum quic_sock_mode {
 	QUIC_SOCK_MODE_CONN,  /* Use a dedicated socket per connection. */

include/haproxy/quic_tls-t.h

@@ -21,6 +21,7 @@
 
 #include <import/ebtree.h>
 
+#include <haproxy/ncbuf-t.h>
 #include <haproxy/quic_ack-t.h>
 #include <haproxy/openssl-compat.h>