Bump actions/cache from 4 to 5 (#217)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -59,7 +59,7 @@ jobs:
           bundler-cache: true
 
       - name: Prepare RuboCop cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         env:
           DEPENDENCIES_HASH: ${{ hashFiles('.ruby-version', '**/.rubocop.yml', '**/.rubocop_todo.yml', 'Gemfile.lock') }}
         with: