Fix typo in keyword 'Wait until keywords succeeds'

Author: datakurre

tests/acceptance/RobotLab/00_Smoke_Test.robot

@@ -15,7 +15,7 @@ Does RobotLab Load?
     [Arguments]    ${browser}
     [Documentation]    Does the Lab launcher show up with a Robot Framework entry?
     Set Tags    browser:${browser}
-    Wait until keywords succeeds  3 x  1 s
+    Wait until keyword succeeds    3 x    1 s
     ...  Open JupyterLab    browser=${browser}
     Page Should Contain    Robot Framework
     Capture Page Screenshot    ${browser}_smoke__00_smoke_test.png