chore(provider/io.sc3.p): use require internally

Author: tomodachi94

unicorn/provider/io/sc3/p.lua

@@ -1,4 +1,5 @@
-local unicorn = dofile("/lib/unicorn/init.lua")
+package.path = "/lib/?.lua;/lib/?;/lib/?/init.lua;" .. package.path
+local unicorn = require("unicorn")
 
 --- Package provider for Pastebin.com.
 ---@param package_table table A valid package table