chore(submodule): bump etc/data/nnet from 88cafa8 to 93ca546

Bumps etc/data/nnet from `88cafa8` to `93ca546`.

---
updated-dependencies:
- dependency-name: etc/data/nnet
  dependency-version: 93ca54662fa6309bf190b78cdfe8752ac0f6a024
  dependency-type: direct:production
...

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

Author: dependabot[bot]