ci: use checkout v5 for wporg prep

Author: Septiyan Nariyanto

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2