libubox: update to Git HEAD (2023-11-30)

325fea5c57cf udebug: add functions for manipulating entry length
e84c000c4756 udebug: add inline helper function to test if a buffer is allocated
40acbe34632b udebug: wait for response after buffer add/remove

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/libs/libubox/Makefile

@@ -5,9 +5,9 @@ PKG_RELEASE=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/libubox.git
-PKG_MIRROR_HASH:=ec4487b5edc071a127b21a63666c20ac1ad516cd48629ee600a679040c709faf
-PKG_SOURCE_DATE:=2023-11-28
-PKG_SOURCE_VERSION:=e80dc00ee90c29ef56ae28f414b0e5bb361206e7
+PKG_MIRROR_HASH:=7b87783f968eeafd7ae79e5bb04e6c32b2aaaf0e6aca5be6e94b5393fc20807f
+PKG_SOURCE_DATE:=2023-11-30
+PKG_SOURCE_VERSION:=40acbe34632b8e4e860fe41bb14ab5d7d5c9cfe9
 PKG_ABI_VERSION:=$(call abi_version_str,$(PKG_SOURCE_DATE))
 CMAKE_INSTALL:=1