Verify on latest PHP version supported by WP

Author: gabriel-detassigny

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: [ '5.6', '7.4', '8.4' ]
+        php-version: [ '5.6', '7.4', '8.3' ]
 
     steps:
       - name: Checkout repository