kea: fix build with Boost 1.90 by adding a missing include

net/kea/Makefile

@@ -1,7 +1,7 @@
 COMMENT=	high-performance and extensible DHCP server engine from ISC
 
 VERSION=	2.4.2
-REVISION=	4
+REVISION=	5
 PORTROACH=	limitw:1,even
 
 # 2.6 update notes so far;

net/kea/patches/patch-src_lib_log_logger_level_impl_cc

@@ -0,0 +1,13 @@
+Add missing include for Boost 1.90
+
+Index: src/lib/log/logger_level_impl.cc
+--- src/lib/log/logger_level_impl.cc.orig
++++ src/lib/log/logger_level_impl.cc
+@@ -10,6 +10,7 @@
+ #include <string.h>
+ #include <iostream>
+ #include <boost/lexical_cast.hpp>
++#include <boost/static_assert.hpp>
+ 
+ #include <log4cplus/logger.h>
+