chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/wiby.yaml

@@ -67,7 +67,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout PR Branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           repository: ${{ github.event.repository.full_name }}
@@ -142,7 +142,7 @@ jobs:
     steps:
 
       - name: Checkout PR Branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           repository: ${{ github.event.repository.full_name }}