lists/migrate3x: update busybox as well early in update

Some packages could fail to run postinst because libc is already
replaced but busybox is not yet replaced. This is just potential
problem.

The reason for this is to have atleast somewhat working shell on Turris
1.x when migration fails.

lists/migrate3x.lua

@@ -36,7 +36,7 @@ if not version_match or not self_version or version_match(self_version, "<63.0")
 
 	Package('updater-ng', {
 		replan = 'immediate',
-		deps = { 'libgcc', 'tos3to4-early' }
+		deps = { 'libgcc', 'busybox', 'tos3to4-early' }
 	})
 	--[[
 	Updater package does not depend on libgcc but it requires it and dependency