chore(deps): bump bignumber.js from 9.1.1 to 9.1.2 (#601)

Bumps [bignumber.js](https://github.com/MikeMcl/bignumber.js) from 9.1.1 to 9.1.2.
- [Release notes](https://github.com/MikeMcl/bignumber.js/releases)
- [Changelog](https://github.com/MikeMcl/bignumber.js/blob/master/CHANGELOG.md)
- [Commits](MikeMcl/bignumber.js@v9.1.1...v9.1.2)

---
updated-dependencies:
- dependency-name: bignumber.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>

yarn.lock

@@ -6041,9 +6041,9 @@ bignumber.js@^2.1.0:
   integrity sha1-g4qZLan51zfg9LLbC+YrsJ3Qxeg=
 
 bignumber.js@^9.0.0:
-  version "9.1.1"
-  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.1.1.tgz#c4df7dc496bd849d4c9464344c1aa74228b4dac6"
-  integrity sha512-pHm4LsMJ6lzgNGVfZHjMoO8sdoRhOzOH4MLmY65Jg70bpxCKu5iOHNJyfF6OyvYw7t8Fpf35RuzUyqnQsj8Vig==
+  version "9.1.2"
+  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.1.2.tgz#b7c4242259c008903b13707983b5f4bbd31eda0c"
+  integrity sha512-2/mKyZH9K85bzOEfhXDBFZTGd1CTs+5IHpeFQo9luiBG7hghdC851Pj2WAhb6E3R6b9tZj/XKhbg4fum+Kepug==
 
 bin-build@^3.0.0:
   version "3.0.0"