build(deps): bump docs/src/firmware-action-example

Bumps [docs/src/firmware-action-example](https://github.com/9elements/firmware-action-example)
from `93ece9c` to `b6e493b`.

---
updated-dependencies:
- dependency-name: docs/src/firmware-action-example
  dependency-type: direct:production
...

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Author: dependabot[bot]