dns320l-mcu: fix compilation with GCC14
Bump version to fix compiling with GCC14.
This fixes the following compile problem:
```
dns320l-daemon.c: In function 'main':
dns320l-daemon.c:740:18: error: implicit declaration of function 'isprint' [-Wimplicit-function-declaration]
740 | else if (isprint (optopt))
| ^~~~~~~
dns320l-daemon.c:50:1: note: include '<ctype.h>' or provide a declaration of 'isprint'
49 | #include "dns320l-daemon.h"
+++ |+#include <ctype.h>
50 |
dns320l-daemon.c:799:5: error: implicit declaration of function 'umask' [-Wimplicit-function-declaration]
799 | umask(0);
| ^~~~~
dns320l-daemon.c:864:5: error: 'return' with no value, in function returning non-void [-Wreturn-mismatch]
864 | return;
| ^~~~~~
dns320l-daemon.c:691:5: note: declared here
691 | int main(int argc, char *argv[])
| ^~~~
```
Link: https://github.com/openwrt/openwrt/pull/18688
Signed-off-by: Zoltan HERPAI <[email protected]>