[dependency]: bump axios

Bumps the faucet-backend-dependencies group in /faucet/backend with 1 update: [axios](https://github.com/axios/axios).


Updates `axios` from 1.7.9 to 1.8.1
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v1.x/CHANGELOG.md)
- [Commits](axios/axios@v1.7.9...v1.8.1)

---
updated-dependencies:
- dependency-name: axios
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: faucet-backend-dependencies
...

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

Author: dependabot[bot]