chore(deps): update actions/checkout action to v3

Author: renovate[bot]

.github/workflows/test.yml

@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v3"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"