Update ruby

Author: marocchino

.github/workflows/build-test.yaml

@@ -10,13 +10,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 1
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.0.0
+          ruby-version: 3.3.6
           bundler-cache: true
       - name: Install dependencies
         run: |

.github/workflows/deploy.yaml

@@ -10,13 +10,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 1
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.0.0
+          ruby-version: 3.3.6
           bundler-cache: true
       - name: Install dependencies
         run: |

Gemfile

@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
-ruby '3.0.0'
+ruby '3.3.6'
 
 gem 'rake'
 gem 'github-pages'