Merge pull request #107 from rtCamp/dependabot/github_actions/actions/checkout-4

Bump actions/checkout from 2 to 4

Author: divyarajmasani

.github/workflows/phpcs_on_pull_request.yml

@@ -6,7 +6,7 @@ jobs:
     # Change below line to: `runs-on: self-hosted` if running on private repo under rtCamp org.
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.event.pull_request.head.sha }}
     - name: Run PHPCS inspection