🐛E2E: Fix wrong argument name

Author: sanderegg

tests/e2e-playwright/tests/tip/test_ti_plan.py

@@ -329,9 +329,7 @@ def test_classic_ti_plan(  # noqa: PLR0915
 
             with log_context(logging.INFO, "Post process"):
                 # click on the postpro mode button
-                s4l_postpro_iframe.get_by_test_id(
-                    "mode-button-postro", timeout=_POST_PRO_MAX_STARTUP_TIME
-                ).click()
+                s4l_postpro_iframe.get_by_test_id("mode-button-postro").click()
                 # click on the surface viewer
                 s4l_postpro_iframe.get_by_test_id("tree-item-ti_field.cache").click()
                 s4l_postpro_iframe.get_by_test_id("tree-item-SurfaceViewer").nth(