fix compilation errors in gcc-15 C23

[teleshoes]

usb_ir compiles fine under gcc-14, but newly fails under gcc-15. this pull request compiles fine in gcc-14 and gcc-15.

debian gnu/linux 6.16.12+deb14+1-amd64
cmake version 3.31.6
gcc (Debian 15.2.0-7) 15.2.0

[teleshoes]

oh the breaking change is that gcc-15 finally switched default C17 => C23

this PR compiles fine in C11, C18 and C23, the previous code compiles only in C11 and C18

~/Code/iguanair/software/usb_ir$
~/Code/iguanair/software/usb_ir$ /usr/bin/cc  -I. -Wall -fpic -fvisibility=hidden -Wno-long-long -pedantic -g -O2 -MD -MT CMakeFiles/igdaemon.dir/daemon.c.o -MF CMakeFiles/igdaemon.dir/daemon.c.o.d -o CMakeFiles/igdaemon.dir/daemon.c.o -c daemon.c \
-std=gnu23
iguanair/software/usb_ir/daemon.c: In function ‘workLoop’:
iguanair/software/usb_ir/daemon.c:58:9: error: too many arguments to function ‘initServer’; expected 0, have 1
   58 |     if (initServer(&srvSettings))
      |         ^~~~~~~~~~ ~~~~~~~~~~~~
In file included from iguanair/software/usb_ir/daemon.c:33:
iguanair/software/usb_ir/server.h:99:6: note: declared here
   99 | bool initServer();
      |      ^~~~~~~~~~
~/Code/iguanair/software/usb_ir$
~/Code/iguanair/software/usb_ir$ /usr/bin/cc  -I. -Wall -fpic -fvisibility=hidden -Wno-long-long -pedantic -g -O2 -MD -MT CMakeFiles/igdaemon.dir/daemon.c.o -MF CMakeFiles/igdaemon.dir/daemon.c.o.d -o CMakeFiles/igdaemon.dir/daemon.c.o -c daemon.c \
-std=gnu18
~/Code/iguanair/software/usb_ir$