Bump libntech from cc1540a to 8b72e12

Bumps [libntech](https://github.com/NorthernTechHQ/libntech) from `cc1540a` to `8b72e12`.
- [Release notes](https://github.com/NorthernTechHQ/libntech/releases)
- [Commits](NorthernTechHQ/libntech@cc1540a...8b72e12)

---
updated-dependencies:
- dependency-name: libntech
  dependency-type: direct:production
...

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