chore(submodule): bump etc/data/nnet from 800f8f3 to d03b07d (#1162)

Bumps etc/data/nnet from `800f8f3` to `d03b07d`.

---
updated-dependencies:
- dependency-name: etc/data/nnet
  dependency-version: d03b07dd16918ebe8a3a648cf63b70f1016fce79
  dependency-type: direct:production
...

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