Fix: shadcn radio widget label should be accessible.

[Sheday]

Reasons for making this change

The labels in the RadioWidget for the shadcn theme don't do anything when clicked on. I would expect when clicking a label that the option gets selected.

Checklist

• I'm updating documentation
  • I've checked the rendering of the Markdown text I've added
• I'm adding or updating code
  • I've added and/or updated tests. I've run npx nx run-many --target=build --exclude=@rjsf/docs && npm run test:update to update snapshots, if needed.
  • I've updated docs if needed
  • I've updated the changelog with a description of the PR
• I'm adding a new feature
  • I've updated the playground with an example use of the feature

[heath-freenome]

@Sheday Can you fix the build issues using npm run cs-format

[heath-freenome]

@Sheday whoops you also have to update the snapshots using the npm run test:update command

[heath-freenome]

@Sheday You are so close to getting this fix merged... Just rebase, fix the conflicts and update the snapshots!