[php] Fix php-unit (#7976)

frameworks/PHP/php/benchmark_config.json

@@ -112,8 +112,7 @@
       "database_os": "Linux",
       "display_name": "PHP Unit Nginx",
       "notes": "",
-      "versus": "php",
-      "tags": ["broken"]
+      "versus": "php"
     },
     "pools": {
       "json_url": "/json.php",

frameworks/PHP/php/php-unit.dockerfile

@@ -1,4 +1,4 @@
-FROM nginx/unit:1.29.0-php8.1
+FROM nginx/unit:1.29.1-php8.1
 
 ADD . /php
 WORKDIR /php