Update Scala version to 2.13.1
Update Scala version to 2.13.1

emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata,emilybache/GildedRose-Refactoring-Kata