build(deps): bump elliptic and ethers

Bumps [elliptic](https://github.com/indutny/elliptic) to 6.6.1 and updates ancestor dependency [ethers](https://github.com/ethers-io/ethers.js). These dependencies need to be updated together.


Updates `elliptic` from 6.5.4 to 6.6.1
- [Commits](indutny/elliptic@v6.5.4...v6.6.1)

Updates `ethers` from 5.6.2 to 6.13.4
- [Release notes](https://github.com/ethers-io/ethers.js/releases)
- [Changelog](https://github.com/ethers-io/ethers.js/blob/main/CHANGELOG.md)
- [Commits](ethers-io/ethers.js@v5.6.2...v6.13.4)

---
updated-dependencies:
- dependency-name: elliptic
  dependency-type: indirect
- dependency-name: ethers
  dependency-type: direct:production
...

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