[CI] Updates GitHub Actions

Author: picandocodigo

.github/workflows/main.yml

@@ -17,7 +17,7 @@ jobs:
         ruby: [ '3.0', '3.1', '3.2', 'jruby-9.3', 'jruby-9.4' ]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Increase system limits
       run: |
         sudo swapoff -a