Clicking task item doesn’t work when using “1)”

What does this MR do and why?

When a numbered task list using parens is used in a description, you cannot check the task item, an error occurs.

How to set up and validate locally

Add the following markdown to an issue description

1) [ ] one
2) [x] two

Once saved, you should be able to check/uncheck the task items.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #355983 (closed)