Bump noredink-ui to 27.4.0 to include Block API ReadAloud

[micahhahn]

🏷️ Bump for version 27.4.0

What changes does this release include?

• [PHX-1215] Create renderReadaloud on the Block API #1567

How has the API changed?

Please paste the output of elm diff run on latest master in the code block:

This is a MINOR change.

---- Nri.Ui.Block.V6 - MINOR ----

    Added:
        renderReadAloud :
            List.List (Nri.Ui.Block.V6.Attribute msg) -> String.String

Releasing

After this PR merges, and you've pulled down latest master, finish following the publishing process.

[linear]

PHX-1215 Improve readaloud for new Scaffolding Markdown in QuestionBox

[DESCRIPTION]

Acceptance Criteria

• The readaloud button is aligned with the first line of the question box, even if the first line contains a label.
• The text sent to readaloud properly handles display elements like blanks and does not readaloud emphasis, icons, etc.