test: prettier format example json files

[MikeMcC399]

Situation

• There are no linting or formatting checks carried out on *.json files which are included in the .github/workflows directory.

• Prettier supports JSON formatting and is available for use in the repo.

Change

To ensure consistent JSON source formatting as part of an overall effort to increase linting coverage in the repo:

• Add .prettierignore exceptions for:

  • generated package-lock.json files
  • renovate.json

• Use Prettier to check all non-generated *.json files in the examples directory, and correct where necessary:

npx prettier --write examples/**/*.json

[cypress-app-bot]

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.

[github-actions]

🎉 This PR is included in version 6.7.16 🎉

The release is available on:

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

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