feat(no-node-access): report childElementCount prop

[brenocota-hotmart]

Checks

• I have read the contributing guidelines.
• If some rule is added/updated/removed, I've regenerated the rules list (npm run generate:rules-list)
• If some rule meta info is changed, I've regenerated the plugin shared configs (npm run generate:configs)

Changes

• This PR adds childElementCount in no-node-access rule

Context

render(
  <ul>
     <li>item 1</li>
     <li>item 1</li>
  </ul>
);

expect(screen.getByRole('list').childElementCount).toBe(2);

[Belco90]

Hey @brenocota-hotmart, thanks for your collaboration! LGTM

[github-actions]

🎉 This PR is included in version 5.7.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[Belco90]

@all-contributors please add @brenocota-hotmart for code and test

[allcontributors]

@Belco90

I've put up a pull request to add @brenocota-hotmart! 🎉