build(deps): bump bumpalo from 3.10.0 to 3.14.0 in /plans/example-rust

Bumps [bumpalo](https://github.com/fitzgen/bumpalo) from 3.10.0 to 3.14.0.
- [Changelog](https://github.com/fitzgen/bumpalo/blob/main/CHANGELOG.md)
- [Commits](fitzgen/bumpalo@3.10.0...3.14.0)

---
updated-dependencies:
- dependency-name: bumpalo
  dependency-type: indirect
...

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