Bump league validator to latest

And also switch to devizzent/cebe-php-openapi for now

Author: WyriHaximus

composer.json

@@ -20,15 +20,15 @@
     },
     "require": {
         "php": "^8.2",
-        "cebe/php-openapi": "dev-openapi-31 as 1.6.0",
+        "devizzent/cebe-php-openapi": "^1",
         "jawira/case-converter": "^3.5",
         "twig/twig": "^3.5",
         "nikic/php-parser": "^4.15",
         "psr/http-message": "^1.0",
         "ringcentral/psr7": "^1.3",
         "symfony/yaml": "^5.4",
         "wyrihaximus/composer-update-bin-autoload-path": "^1 || ^1.0.1",
-        "league/openapi-psr7-validator": "^0.18",
+        "league/openapi-psr7-validator": "^0.21",
         "react/http": "^1.8",
         "reactivex/rxphp": "^2.0",
         "api-clients/contracts": "^0.1",