Composer: raise the minimum supported version of Prophecy

Prophecy 1.3 was released in 2014, while Prophecy 1.10.0 - the last minor which still allows installation on PHP 5.3 -, was released in 2019.

It seems prudent to raise the minimum supported version, if for no other reason than to ensure PHP cross-version compatibility.

Ref: https://github.com/phpspec/prophecy/blob/master/CHANGES.md

Author: jrfnl

composer.json

@@ -15,7 +15,7 @@
     "prefer-stable": true,
     "require": {
         "php": "^7.3 || ^8",
-        "phpspec/prophecy": "^1.3",
+        "phpspec/prophecy": "^1.10.0",
         "phpunit/phpunit":"^9.1"
     },
     "autoload": {