busybox: update to v1.13.4 (closes: #4279)

package/busybox/Makefile

package/busybox/config/Config.in

package/busybox/config/archival/Config.in

package/busybox/config/console-tools/Config.in

package/busybox/config/coreutils/Config.in

package/busybox/config/debianutils/Config.in

package/busybox/config/editors/Config.in

package/busybox/config/findutils/Config.in

package/busybox/config/init/Config.in

package/busybox/config/ipsvd/Config.in

package/busybox/config/loginutils/Config.in

package/busybox/config/mailutils/Config.in

package/busybox/config/miscutils/Config.in

package/busybox/config/modutils/Config.in

package/busybox/config/networking/Config.in

package/busybox/config/networking/udhcp/Config.in

package/busybox/config/printutils/Config.in

package/busybox/config/procps/Config.in

package/busybox/config/runit/Config.in

package/busybox/config/selinux/Config.in