Bump @toruslabs/eccrypto from 3.0.0 to 4.0.0

Bumps [@toruslabs/eccrypto](https://github.com/torusresearch/eccrypto) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/torusresearch/eccrypto/releases)
- [Commits](torusresearch/eccrypto@v3.0.0...v4.0.0)

---
updated-dependencies:
- dependency-name: "@toruslabs/eccrypto"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]