drop unused dependency on coveralls

Author: shish

generator/composer.json

@@ -12,14 +12,13 @@
     "ext-simplexml": "*",
     "ext-json": "*",
     "phpstan/phpstan": "^1",
-    "symfony/console": "^6",
-    "symfony/process": "^6",
-    "symfony/finder": "^6"
+    "symfony/console": "^7",
+    "symfony/process": "^7",
+    "symfony/finder": "^7"
   },
   "require-dev": {
     "phpunit/phpunit": "^12",
     "squizlabs/php_codesniffer": "^3.2",
-    "php-coveralls/php-coveralls": "^2.1",
     "php-parallel-lint/php-parallel-lint": "^1.4"
   },
   "scripts": {