libubox: update to version 2020-07-11

f4e9bf73ac5c examples/lua: attempt to highlight some traps
 53b9a2123fc6 lua/uloop: fd_add: use absolute indices for arguments
 c0941d3289fc lua/uloop: make get_sock_fd capable of absolute addresses
 161c25960ba2 lua/uloop: fd_add() better args checking

Signed-off-by: Petr Štetiar <ynezz@true.cz>

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:=3d58def8e415ceda8aacfd8453813d8bf2a05991c0df0c074744639ab04321ba
-PKG_SOURCE_DATE:=2020-05-25
-PKG_SOURCE_VERSION:=66195aee50424cbda0c2d858014e4cc58a2dc029
+PKG_MIRROR_HASH:=cb941cd33f43b38ef1a1f2b4fd212e0bb21c100dcdd2ab1976f8cc2071566d32
+PKG_SOURCE_DATE:=2020-07-11
+PKG_SOURCE_VERSION:=f4e9bf73ac5c0ee6b8f240e2a2100e70ca56d705
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=ISC