build(deps): bump libbpf-rs from 0.26.0 to 0.26.2 in /examples/rust

Bumps [libbpf-rs](https://github.com/libbpf/libbpf-rs) from 0.26.0 to 0.26.2.
- [Release notes](https://github.com/libbpf/libbpf-rs/releases)
- [Commits](libbpf/libbpf-rs@v0.26.0...v0.26.2)

---
updated-dependencies:
- dependency-name: libbpf-rs
  dependency-version: 0.26.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]