Bump elixir from 1.16.0 to 1.18.0 in /elixir

Author: mengdaming

.github/workflows/mix.yml

@@ -15,8 +15,8 @@ jobs:
       - name: Set up Beam
         uses: erlef/setup-beam@v1
         with:
-          otp-version: '26.2'
-          elixir-version: '1.16.0'
+          otp-version: '27'
+          elixir-version: '1.18.0'
       - name: Dependencies
         working-directory: elixir
         run: mix deps.get

elixir/GETTING_STARTED.md

@@ -8,12 +8,12 @@
 - [elixir](https://elixir-lang.org/install.html)
   <details><summary>Elixir Version</summary>
 
-  The kata is configured to run with Elixir version 1.16 by default.
+  The kata is configured to run with Elixir version 1.18 by default.
 
   To use a different version, simply modify the line below in [mix.exs](mix.exs).
 
     ```text
-    elixir: "~> 1.16",
+    elixir: "~> 1.18",
     ```
   </details>
 

elixir/lib/bowling_game.ex

@@ -1,4 +1,4 @@
-# Copyright (c) 2023 Murex
+# Copyright (c) 2024 Murex
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -20,8 +20,10 @@
 
 defmodule BowlingGame do
 
+  @spec score([integer()]) :: integer()
   def score(_rolls) do
     # TODO - Implement me!
+    0
   end
 
 end

elixir/mix.exs

@@ -5,7 +5,7 @@ defmodule BowlingGame.MixProject do
     [
       app: :bowling_game,
       version: "0.1.0",
-      elixir: "~> 1.16",
+      elixir: "~> 1.18",
       start_permanent: Mix.env() == :prod,
       deps: deps()
     ]