cross-rx-gcc14-bootstrap from home:ChickeNES:osdev project

需要 openSUSE Tumbleweed ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:ChickeNES:osdev/openSUSE_Tumbleweed/home:ChickeNES:osdev.repo
zypper refresh
zypper install cross-rx-gcc14-bootstrap