Bump @bitcoinerlab/secp256k1 from 1.1.1 to 1.2.0

Bumps [@bitcoinerlab/secp256k1](https://github.com/bitcoinerlab/secp256k1) from 1.1.1 to 1.2.0.
- [Release notes](https://github.com/bitcoinerlab/secp256k1/releases)
- [Commits](https://github.com/bitcoinerlab/secp256k1/commits/v1.2.0)

---
updated-dependencies:
- dependency-name: "@bitcoinerlab/secp256k1"
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]