test on PHP 8.1

Author: limenet

.github/workflows/run-tests.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        php: [8.0]
+        php: [8.0, 8.1]
         laravel: [8.*, 9.x-dev]
         elasticsearch: ["7.12.1", "7.13.0"]
         stability: [prefer-lowest, prefer-stable]