package/swupdate: fix build failure with luajit

Add local patche committed upstream to fix build failure due to missing
limits.h include.

This error happens when compiling swupdate with LuaJit. This can be
reproduced with the following configuration:

cat >configs/samba-bump_defconfig <<EOF
BR2_arm=y
BR2_cortex_a7=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
BR2_PACKAGE_SWUPDATE=y
BR2_PACKAGE_LUAJIT=y
EOF
make olddefconfig
make swupdate

Fixes:
https://autobuild.buildroot.org/results/6ed019be7ff0144679f150dbd67cec4dd31fdb15/

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
[thomas: add configuration]
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/swupdate/0001-lua-add-limits.h-to-set-PATH_MAX.patch

@@ -0,0 +1,30 @@
+From 3de6491463f4b1ddf2e792771831acfb705e246d Mon Sep 17 00:00:00 2001
+From: Stefano Babic <stefano.babic@swupdate.org>
+Date: Tue, 11 Feb 2025 09:08:15 +0100
+Subject: [PATCH] lua: add limits.h to set PATH_MAX
+
+This fixes github action (debian slim), with other builds the file is
+automatically included.
+
+Upstream: https://github.com/sbabic/swupdate/commit/3de6491463f4b1ddf2e792771831acfb705e246d
+Signed-off-by: Stefano Babic <stefano.babic@swupdate.org>
+Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
+---
+ corelib/lua_interface.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/corelib/lua_interface.c b/corelib/lua_interface.c
+index 02d48259..ffe62d88 100644
+--- a/corelib/lua_interface.c
++++ b/corelib/lua_interface.c
+@@ -16,6 +16,7 @@
+ #include <sys/sysmacros.h>
+ #endif
+ #include <sys/types.h>
++#include <limits.h>
+ 
+ #include "lua.h"
+ #include "lauxlib.h"
+-- 
+2.47.3
+