Use the "cc" module namespace instead of "craftos"

This is what we actually discussed in the issue, and I failed to
remember.

src/main/resources/assets/computercraft/lua/bios.lua

@@ -6,7 +6,7 @@
 local expect
 
 do
-    local h = fs.open("rom/modules/main/craftos/expect.lua", "r")
+    local h = fs.open("rom/modules/main/cc/expect.lua", "r")
     local f, err = loadstring(h.readAll(), "@expect.lua")
     h.close()