test: Fix PHPUnit 11 use in Behat

Starting with PHPUnit 11.3, some complex outputs of certain asserts
(like "assertStringContainsString") require the output of PHPUnit to be
explicitly setup. Otherwise when the assert fails a type error is
thrown (although it does not seem to affect asserts with simpler
outputs, like "assertEquals").

Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>

build/integration/features/bootstrap/BasicStructure.php

@@ -475,6 +475,13 @@ trait BasicStructure {
 		sleep((int)$seconds);
 	}
 
+	/**
+	 * @BeforeSuite
+	 */
+	public static function createPHPUnitConfiguration(): void {
+		(new \PHPUnit\TextUI\Configuration\Builder())->build([]);
+	}
+
 	/**
 	 * @BeforeSuite
 	 */