Bump macaddress from 0.2.8 to 0.2.9 in /openhtf/output/web_gui

Bumps [macaddress](https://github.com/scravy/node-macaddress) from 0.2.8 to 0.2.9.
- [Release notes](https://github.com/scravy/node-macaddress/releases)
- [Commits](scravy/node-macaddress@0.2.8...0.2.9)

---
updated-dependencies:
- dependency-name: macaddress
  dependency-type: indirect
...

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Author: dependabot[bot]