package/firmware-utils: bump version to git commit c42a3bc53d
This bump includes a patch which adds cmake4 compatibility.
For changes, see:
https://git.openwrt.org/?p=project/firmware-utils.git;a=log;h=c42a3bc53da869d02c8ae4d62b3b08a95ff5833f
Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
[Julien: add link to upstream repo commit log]
Signed-off-by: Julien Olivain <ju.o@free.fr>