Test using PHP 8.3 as well

Author: robtimus

.github/workflows/build.yml

@@ -77,7 +77,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [8.0, 8.1, 8.2]
+        php: [8.0, 8.1, 8.2, 8.3]
       fail-fast: false
     steps:
       - uses: actions/checkout@v4