Bump worker from 0.1.0 to 0.2.0 in /example (#36)

Bumps [worker](https://github.com/cloudflare/workers-rs) from 0.1.0 to 0.2.0.
- [Release notes](https://github.com/cloudflare/workers-rs/releases)
- [Commits](cloudflare/workers-rs@worker-build-v0.1.0...v0.2.0)

---
updated-dependencies:
- dependency-name: worker
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>