Bump decimal.js from 10.3.0 to 10.3.1 (#865)

Bumps [decimal.js](https://github.com/MikeMcl/decimal.js) from 10.3.0 to 10.3.1.
- [Release notes](https://github.com/MikeMcl/decimal.js/releases)
- [Changelog](https://github.com/MikeMcl/decimal.js/blob/master/CHANGELOG.md)
- [Commits](MikeMcl/decimal.js@v10.3.0...v10.3.1)

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

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

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