build(deps): bump libbpf-rs from 0.24.7 to 0.24.8 in /examples/rust

Bumps [libbpf-rs](https://github.com/libbpf/libbpf-rs) from 0.24.7 to 0.24.8.
- [Release notes](https://github.com/libbpf/libbpf-rs/releases)
- [Commits](libbpf/libbpf-rs@v0.24.7...v0.24.8)

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

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