Run tests on PHP 8.3 and update test suite

Author: yadaiio

.github/workflows/ci.yml

@@ -11,6 +11,7 @@ jobs:
     strategy:
       matrix:
         php:
+          - 8.3
           - 8.2
           - 8.1
           - 8.0
@@ -24,7 +25,7 @@ jobs:
           - 5.4
           - 5.3
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}

composer.json

@@ -24,7 +24,7 @@
     "require-dev": {
         "clue/caret-notation": "^0.2",
         "clue/tar-react": "^0.2",
-        "phpunit/phpunit": "^9.5 || ^5.7 || ^4.8.35",
+        "phpunit/phpunit": "^9.5 || ^5.7 || ^4.8.36",
         "react/async": "^4 || ^3 || ^2"
     },
     "autoload": {