ci: keep stable support matrix strict

Author: sudiptpa

.github/workflows/ci.yml

@@ -15,7 +15,6 @@ concurrency:
 jobs:
   test:
     runs-on: ubuntu-latest
-    continue-on-error: ${{ matrix.experimental || false }}
 
     strategy:
       fail-fast: false
@@ -29,9 +28,6 @@ jobs:
             dependency-version: 'prefer-stable'
           - php: '8.4'
             dependency-version: 'prefer-stable'
-          - php: '8.5'
-            dependency-version: 'prefer-stable'
-            experimental: true
 
     steps:
       - name: Checkout code