chore(deps): update dependency ruby to v4

Author: renovate[bot]

.github/workflows/brakeman.yml

@@ -36,7 +36,7 @@ jobs:
     - name: Setup Ruby
       uses: ruby/setup-ruby@250fcd6a742febb1123a77a841497ccaa8b9e939
       with:
-        ruby-version: '2.7'
+        ruby-version: '4.0.0'
 
     - name: Setup Brakeman
       env:

.github/workflows/rubocop.yml

@@ -30,7 +30,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@250fcd6a742febb1123a77a841497ccaa8b9e939
       with:
-        ruby-version: 2.6
+        ruby-version: 4.0.0
 
     # This step is not necessary if you add the gem to your Gemfile
     - name: Install Code Scanning integration