Merge pull request #978 from pgoslatara/actup/update-actions-1770220985

chore: Update outdated GitHub Actions version

Author: lukasz-madon

.github/workflows/check.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Set up Ruby 2.6
       uses: ruby/setup-ruby@v1
       with: