Pin behat/gherkin to fix PHP 8.5 tests

Author: swissspidy

composer.json

@@ -11,6 +11,7 @@
     "require": {
         "php": ">=7.2.24",
         "behat/behat": "^v3.15.0",
+        "behat/gherkin": "<v4.15.0",
         "dealerdirect/phpcodesniffer-composer-installer": "^0.4.3 || ^0.5 || ^0.6.2 || ^0.7.1 || ^1.0.0",
         "php-parallel-lint/php-console-highlighter": "^1.0",
         "php-parallel-lint/php-parallel-lint": "^1.3.1",