chore(deps)(deps): bump worker from 0.8.1 to 0.8.3 in /vault-worker (#43)

Bumps [worker](https://github.com/cloudflare/workers-rs) from 0.8.1 to 0.8.3.
- [Release notes](https://github.com/cloudflare/workers-rs/releases)
- [Commits](cloudflare/workers-rs@v0.8.1...v0.8.3)

---
updated-dependencies:
- dependency-name: worker
  dependency-version: 0.8.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]