[Docs Site] Bump wrangler from 3.109.0 to 4.2.0

Bumps [wrangler](https://github.com/cloudflare/workers-sdk/tree/HEAD/packages/wrangler) from 3.109.0 to 4.2.0.
- [Release notes](https://github.com/cloudflare/workers-sdk/releases)
- [Changelog](https://github.com/cloudflare/workers-sdk/blob/main/packages/wrangler/CHANGELOG.md)
- [Commits](https://github.com/cloudflare/workers-sdk/commits/[email protected]/packages/wrangler)

---
updated-dependencies:
- dependency-name: wrangler
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]