Update supported PHP versions to match Magento

Version 2.4.7-p2 (which is the latest at time of writing) supports PHP versions
8.1.x and 8.2.x and 8.3.x. This change updates the PHPCompatibility
configuration to scan for these versions.

Author: fredden

Magento2/ruleset.xml

@@ -767,7 +767,7 @@
     </rule>
 
     <!-- PHPCompatibility configuration. -->
-    <config name="testVersion" value="8.1-8.2"/>
+    <config name="testVersion" value="8.1-8.3"/>
     <rule ref="PHPCompatibility">
         <exclude name="PHPCompatibility.Miscellaneous.RemovedAlternativePHPTags.MaybeASPOpenTagFound" />
         <!-- Following sniffs have an equivalent in PHPCS -->