fix(phpstan): bump bundled PHPStan phar 2.1.39 -> 2.2.2

The bundled phpstan.phar (2.1.39) was below the floor required by the
phpstan-* extension packages. phpstan/phpstan-doctrine 2.0.27 requires
phpstan ^2.2.2, so phpstan/extension-installer aborted every analysis run
with "Running PHPStan with incompatible extensions" (extensions support
>=2.2.2,<3.0.0) before any analysis executed.

Updated phive.xml constraint to ^2.2.2 and re-installed via phive (GPG
verified) to pull the newest stable PHPStan 2.x (2.2.2), which satisfies
all bundled extension constraints. No other phars changed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: Joseph Edmonds

phive.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
   <phar name="infection" version="^0.30" location="./vendor-phar/infection.phar" copy="true" installed="0.30.3"/>
-  <phar name="phpstan" version="^2.1" location="./vendor-phar/phpstan.phar" copy="true" installed="2.1.39"/>
+  <phar name="phpstan" version="^2.2.2" location="./vendor-phar/phpstan.phar" copy="true" installed="2.2.2"/>
   <phar name="php-cs-fixer" version="^3.85" location="./vendor-phar/php-cs-fixer.phar" copy="true" installed="3.94.0"/>
   <phar name="composer-require-checker" version="^4.15" location="./vendor-phar/composer-require-checker.phar" copy="true" installed="4.20.0"/>
 </phive>