Update composer.json

Author: wol-soft

composer.json

@@ -12,7 +12,7 @@
  ],
  "require": {
  "symfony/polyfill-php81": "^1.28",
- "wol-soft/php-json-schema-model-generator-production": "dev-BuilderClassPostProcessor",
+ "wol-soft/php-json-schema-model-generator-production": "^0.20",
  "wol-soft/php-micro-template": "^1.10.0",
 
  "php": ">=8.0",