chore: fix ci deprecations

Author: Chris8934

.github/workflows/ci.yml

@@ -33,7 +33,7 @@ jobs:
           tools: composer:v2
 
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Download dependencies
         run: |

.github/workflows/static.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: PHP-CS-Fixer
         uses: docker://oskarstark/php-cs-fixer-ga:2.16.4