test: Correct load path for cliargs.core

Author: deining

spec/core_spec.lua

@@ -4,7 +4,7 @@ describe("cliargs::core", function()
   local cli
 
   before_each(function()
-    cli = require("cliargs.core")()
+    cli = require("../src.cliargs.core")()
   end)
 
   describe('#parse', function()