build(deps): bump external/bpf_conformance from 3432dc3 to 1aac408 (

#243)

Bumps [external/bpf_conformance](https://github.com/Alan-Jowett/bpf_conformance) from `3432dc3` to `1aac408`.
- [Release notes](https://github.com/Alan-Jowett/bpf_conformance/releases)
- [Commits](Alan-Jowett/bpf_conformance@3432dc3...1aac408)

---
updated-dependencies:
- dependency-name: external/bpf_conformance
  dependency-type: direct:production
...

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