Update rubocop github action

Author: Redande

.github/workflows/rubocop.yml

@@ -11,13 +11,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Ruby 3.0
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: 3.0
     - name: Cache gems
-      uses: actions/cache@v1
+      uses: actions/cache@v4
       with:
         path: vendor/bundle
         key: ${{ runner.os }}-rubocop-${{ hashFiles('**/Gemfile.lock') }}
@@ -28,4 +28,4 @@ jobs:
         bundle config path vendor/bundle
         bundle install --jobs 4 --retry 3
     - name: Run RuboCop
-      run: bundle exec rubocop
+      run: bundle exec rubocop