chore(deps): bump bn.js from 4.12.0 to 4.12.3

Bumps [bn.js](https://github.com/indutny/bn.js) from 4.12.0 to 4.12.3.
- [Release notes](https://github.com/indutny/bn.js/releases)
- [Changelog](https://github.com/indutny/bn.js/blob/master/CHANGELOG.md)
- [Commits](indutny/bn.js@v4.12.0...v4.12.3)

---
updated-dependencies:
- dependency-name: bn.js
  dependency-version: 4.12.3
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

yarn.lock

@@ -3783,9 +3783,9 @@ bluebird@^3.0.0, bluebird@^3.1.1:
   integrity sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==
 
 bn.js@^4.0.0, bn.js@^4.11.9:
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
-  integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
+  version "4.12.3"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.3.tgz#2cc2c679188eb35b006f2d0d4710bed8437a769e"
+  integrity sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g==
 
 body-parser@1.20.1:
   version "1.20.1"