chore(deps): bump rust_decimal from 1.30.0 to 1.31.0 (#355)

Bumps [rust_decimal](https://github.com/paupino/rust-decimal) from 1.30.0 to 1.31.0.
- [Changelog](https://github.com/paupino/rust-decimal/blob/master/CHANGELOG.md)
- [Commits](paupino/rust-decimal@1.30.0...1.31.0)

---
updated-dependencies:
- dependency-name: rust_decimal
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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