consolekit: Disable incompatible-pointer-types warning as error

Fixes build with gcc-14

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit d4fb4007)
Signed-off-by: Steve Sakoman <steve@sakoman.com>