This PR fixes an issue in Behat\Behat\Gherkin\ServiceContainer\GherkinExtension::getLibPath(), where the method incorrectly assumes the path to the Gherkin library using '/../../../'.

After Behat/Gherkin#288, the CachedArrayKeywords.php file was relocated, making the hardcoded path incorrect. This caused issues with loading Gherkin keyword data, leading to errors like:

PHP Fatal error:  Uncaught TypeError: Behat\Gherkin\Keywords\ArrayKeywords::__construct(): 
Argument #1 ($keywords) must be of type array, false given...

Changes:

• Updated getLibPath() to use '/../' instead of '/../../../' to correctly resolve the library path.

Impact:

• Fixes Behat execution errors caused by the incorrect path resolution.
• Ensures compatibility with the latest Behat/Gherkin restructuring.