Fixed workflows

Author: anzin

.github/workflows/php.yml

@@ -14,9 +14,9 @@ jobs:
       fail-fast: false
       matrix:
         php-version:
-          - "7.3"
           - "7.4"
           - "8.0"
+          - "8.1"
         dependencies:
           - "lowest"
           - "highest"