build(deps): bump webtools from 71f271a to c594022

Bumps [webtools](https://github.com/espruino/EspruinoWebTools) from `71f271a` to `c594022`.
- [Commits](espruino/EspruinoWebTools@71f271a...c594022)

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

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