fix: test execution not working on BS without /wd/hub.

Author: lucashimpens

source/src/main/java/org/cerberus/core/engine/execution/impl/RobotServerService.java

@@ -289,6 +289,12 @@ public void startServer(TestCaseExecution execution) throws CerberusException {
                             execution.getSession().getHostPassword(),
                             session.getHost()),
                     session.getPort()));
+
+            //Even if /wd/hub is not the standard anymore with Selenium 4, BS still continue to use it.
+            if (execution.getRobotProvider().equals(TestCaseExecution.ROBOTPROVIDER_BROWSERSTACK)) {
+                hubUrl += "/wd/hub";
+            }
+
             LOG.debug("Hub URL :{}", hubUrl);
             URL url = new URL(hubUrl);