build(deps): bump anyhow from 1.0.93 to 1.0.94 in /examples/rust

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.93 to 1.0.94.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](dtolnay/anyhow@1.0.93...1.0.94)

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

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

Author: dependabot[bot]