Bump form-data in /smart_contracts/ethereum/solidity_firefly

Bumps  and [form-data](https://github.com/form-data/form-data). These dependencies needed to be updated together.

Updates `form-data` from 4.0.0 to 4.0.5
- [Release notes](https://github.com/form-data/form-data/releases)
- [Changelog](https://github.com/form-data/form-data/blob/master/CHANGELOG.md)
- [Commits](form-data/form-data@v4.0.0...v4.0.5)

Updates `form-data` from 2.5.1 to 2.5.5
- [Release notes](https://github.com/form-data/form-data/releases)
- [Changelog](https://github.com/form-data/form-data/blob/master/CHANGELOG.md)
- [Commits](form-data/form-data@v4.0.0...v4.0.5)

---
updated-dependencies:
- dependency-name: form-data
  dependency-version: 4.0.5
  dependency-type: indirect
- dependency-name: form-data
  dependency-version: 2.5.5
  dependency-type: indirect
...

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

Author: dependabot[bot]