tests: check that builtin auto-reads lua/ when modules table is empty
tests: check that builtin auto-reads lua/ when modules table is empty

Test case for issue reported at https://github.com/Kong/kong/issues/5017

keplerproject/luarocks,keplerproject/luarocks,keplerproject/luarocks,keplerproject/luarocks,luarocks/luarocks,luarocks/luarocks,luarocks/luarocks