Test on PHP 8.5 (#319)

Author: greg-1-anderson

.github/workflows/ci.yml

@@ -115,6 +115,12 @@ jobs:
             codecov: true
             php-ini-values: assert.exception=1, zend.assertions=1, opcache.enable=1, opcache.enable_cli=1, opcache.optimization_level=-1, opcache.jit_buffer_size=4096M, opcache.jit=1205
 
+          - os: ubuntu-latest
+            php-version: "8.5"
+            dependencies: highest
+            codecov: true
+            php-ini-values: assert.exception=1, zend.assertions=1, opcache.enable=1, opcache.enable_cli=1, opcache.optimization_level=-1, opcache.jit_buffer_size=4096M, opcache.jit=1205
+
     steps:
       - name: Checkout
         uses: actions/checkout@v2