Add PHP 8.3 / 8.4

Author: kelunik

.github/workflows/ci.yml

@@ -12,11 +12,17 @@ jobs:
       matrix:
         include:
           - operating-system: 'ubuntu-latest'
-            php-version: '8.1'
+            php-version: 8.1
             composer-flags: '--ignore-platform-req=php+'
           - operating-system: 'ubuntu-latest'
             php-version: 8.2
             composer-flags: '--ignore-platform-req=php+'
+          - operating-system: 'ubuntu-latest'
+            php-version: 8.3
+            composer-flags: '--ignore-platform-req=php+'
+          - operating-system: 'ubuntu-latest'
+            php-version: 8.4
+            composer-flags: '--ignore-platform-req=php+'
 
     name: PHP ${{ matrix.php-version }} ${{ matrix.job-description }}
     runs-on: ${{ matrix.operating-system }}