Update PHP minimum version to 8.0 and dependencies to latest compatible version

Author: nguereza-tony

composer.json

@@ -20,7 +20,7 @@
 
     "require": {
         "php": "^8",
-        "platine-php/stdlib": "^1.0"
+        "platine-php/stdlib": "^2.0"
     },
 
     "require-dev": {