Bump secp256k1

Bumps  and [secp256k1](https://github.com/cryptocoinjs/secp256k1-node). These dependencies needed to be updated together.

Updates `secp256k1` from 4.0.3 to 5.0.1
- [Release notes](https://github.com/cryptocoinjs/secp256k1-node/releases)
- [Commits](cryptocoinjs/secp256k1-node@v4.0.3...v5.0.1)

Updates `secp256k1` from 5.0.0 to 5.0.1
- [Release notes](https://github.com/cryptocoinjs/secp256k1-node/releases)
- [Commits](cryptocoinjs/secp256k1-node@v4.0.3...v5.0.1)

---
updated-dependencies:
- dependency-name: secp256k1
  dependency-type: direct:production
- dependency-name: secp256k1
  dependency-type: direct:production
...

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