Call for review: Ensure required contest rule example passes required owned elms rule

Hey folks,
This pull request fixes an issue where one of the examples of our Required
context rule was failing the Required owned elements rule:
https://github.com/act-rules/act-rules.github.io/pull/1973

If you have any comments or concerns, please leave a review by November
29th.

-- 
*Wilco Fiers*
Axe-core & Axe-linter product owner - WCAG 3 Project Manager - Facilitator
ACT Task Force