What?

This PR updates CodeMirror dependencies to include a recent accessibility-related autocomplete fix:
https://discuss.codemirror.net/t/avoiding-aria-autocomplete-list-when-no-autocompletion-providers/8313/2

Why?

Fixes #289 - "Playground block: A11Y: Use correct ARIA specification for autocomplete"

Implementation

This PR updates npm dependencies for CodeMirror. The Playground block appears to work well with the update.

The interactive-code-block doesn't render well in the editor either before or after these updates. (Is it still in use anywhere, and if not, can we delete it? cc @adamziel)

Testing Instructions

• Run npm install update dependencies
• Run: npx nx dev wordpress-playground-block to build the block and start a dev server
• Open the editor and create a post containing the WordPress Playground block
• Leave "index.php" in place, and add a file type like "test.xyz" that is not a file type with autocomplete support
• Publish the post and view on the front end
• Open the browser dev tools
• Select "index.php", run $$('[aria-autocomplete]'), and confirm the query returns an element
• Select "test.xyz", run $$('[aria-autocomplete]'), and confirm the query returns an empty list