[generator] phpstan is required to run, not just to develop

The generator directly references functionMap.php from within the phpstan.phar file

generator/composer.json

@@ -1,6 +1,7 @@
 {
   "name": "thecodingmachine/safe-generator",
   "description": "Generated the files for thecodingmachine/safe",
+  "version": "0.0.0",
   "autoload": {
     "psr-4": {
       "Safe\\": "src/"
@@ -10,6 +11,7 @@
     "php": "^8.3",
     "ext-simplexml": "*",
     "ext-json": "*",
+    "phpstan/phpstan": "^1",
     "symfony/console": "^6",
     "symfony/process": "^6",
     "symfony/finder": "^6"
@@ -19,7 +21,6 @@
     "thecodingmachine/phpstan-strict-rules": "^1.0",
     "squizlabs/php_codesniffer": "^3.2",
     "php-coveralls/php-coveralls": "^2.1",
-    "phpstan/phpstan": "^1",
     "php-parallel-lint/php-parallel-lint": "^1.4"
   },
   "scripts": {