adjust composer.json and build script

Author: unglaublicherdude

.github/workflows/github-release.yaml

@@ -45,9 +45,12 @@ jobs:
           fi
 
   test:
+    strategy:
+      matrix:
+        php-version: ["8.2", "8.3"]
     runs-on: ubuntu-latest
     container:
-      image: mcr.microsoft.com/devcontainers/php:1-8.2-bullseye
+      image: mcr.microsoft.com/devcontainers/php:1-${{ matrix.php-version }}-bullseye
     steps:
       - uses: actions/checkout@v4
       - name: composer install

composer.json

@@ -32,7 +32,7 @@
     },
     "require-dev": {
         "johnpbloch/wordpress": "6.7.1",
-        "phpunit/phpunit": "^12.0",
+        "phpunit/phpunit": "^12.0 || ^11.0",
         "wp-coding-standards/wpcs": "^3.1",
         "symfony/finder": "^7.1"
     }