Update ci.yml

Author: aawnu

.github/workflows/ci.yml

@@ -83,7 +83,7 @@ jobs:
       fail-fast: true
       matrix:
         operating-system: ["ubuntu-latest"]
-        php-versions: ["8.0", "8.1", "8.2", "8.3", "8.4"]
+        php-versions: ["8.0", "8.1", "8.2", "8.3", "8.4", "8.5", "8.6"]
 
     steps:
       - name: "Checkout"