Update the CI setup

Author: stof

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
         runs-on: ubuntu-latest
 
         steps:
-            - uses: actions/checkout@v5
+            - uses: actions/checkout@v6
             - uses: shivammathur/setup-php@v2
             - name: Validate composer.json
               run: composer validate --strict --no-check-lock
@@ -19,12 +19,12 @@ jobs:
         name: Static analysis
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v5
+            - uses: actions/checkout@v6
 
             - uses: shivammathur/setup-php@v2
               with:
                   coverage: none
-                  php-version: '8.2'
+                  php-version: '8.4'
 
             - name: Install dependencies
               run: composer update --ansi --no-progress --prefer-dist --no-interaction
@@ -56,7 +56,7 @@ jobs:
                       composer_flags: ''
 
         steps:
-            -   uses: actions/checkout@v5
+            -   uses: actions/checkout@v6
 
             -   uses: shivammathur/setup-php@v2
                 with: