chore(deps): bump secp256k1 from 0.29.0 to 0.29.1 (#1770)

Bumps [secp256k1](https://github.com/rust-bitcoin/rust-secp256k1) from 0.29.0 to 0.29.1.
- [Changelog](https://github.com/rust-bitcoin/rust-secp256k1/blob/secp256k1-0.29.1/CHANGELOG.md)
- [Commits](rust-bitcoin/rust-secp256k1@secp256k1-0.29.0...secp256k1-0.29.1)

---
updated-dependencies:
- dependency-name: secp256k1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>