Fix wrong PHP version constraint for pie (mongodb#1874)

Author: alcaeus

composer.json

@@ -11,7 +11,7 @@
     { "name": "Jérôme Tamarelle", "email": "[email protected]" }
   ],
   "require": {
-    "php": ">=7.4,<9",
+    "php": ">=8.1,<9",
     "ext-date": "*",
     "ext-json": "*"
   },