valid-suite/test-description rules don't handle template literals

[shusak]

When the descriptions are a template literal, they are not processed by these rules.

The rules need to look to see if the argument is a TemplateLiteral and navigate to it's raw or cooked value to run the regEx on.

[hinhengchan]

+1, having the same issue for both rules valid-suite-description and valid-test-description

[lo1tuma]

I think we could only check template literals without any expressions or tags.