ci: use fixed phpunit and rector versions (#1634)

Author: brendt

.github/workflows/isolated-tests.yml

@@ -66,7 +66,7 @@ jobs:
         uses: supercharge/[email protected]
 
       - name: Install PHPUnit
-        run: composer global require phpunit/phpunit:^12.2.3
+        run: composer global require phpunit/phpunit:12.4.0
 
       - name: Setup problem matchers
         run: |

packages/upgrade/composer.json

@@ -5,7 +5,7 @@
     "minimum-stability": "dev",
     "require": {
         "php": "^8.4",
-        "rector/rector": "^2.1"
+        "rector/rector": "2.2.1"
     },
     "autoload": {
         "psr-4": {