Bump bn.js from 5.2.1 to 5.2.3 in /.github/scripts (#499)

Bumps [bn.js](https://github.com/indutny/bn.js) from 5.2.1 to 5.2.3.
- [Release notes](https://github.com/indutny/bn.js/releases)
- [Changelog](https://github.com/indutny/bn.js/blob/master/CHANGELOG.md)
- [Commits](indutny/bn.js@v5.2.1...v5.2.3)

---
updated-dependencies:
- dependency-name: bn.js
  dependency-version: 5.2.3
  dependency-type: indirect
...

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

Author: dependabot[bot]

.github/scripts/yarn.lock

@@ -518,9 +518,9 @@ before-after-hook@^2.2.0:
   integrity sha512-NzUnlZexiaH/46WDhANlyR2bXRopNg4F/zuSA3OpZnllCUgRaOF2znDioDWrmbNVsuZk6l9pMquQB38cfBZwkQ==
 
 bn.js@^5.2.1:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.1.tgz#0bc527a6a0d18d0aa8d5b0538ce4a77dccfa7b70"
-  integrity sha512-eXRvHzWyYPBuB4NBy0cmYQjGitUrtqwbvlzP3G6VFnNRbsZQIxQ10PbKKHt8gZ/HW/D/747aDl+QkDqg3KQLMQ==
+  version "5.2.3"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.3.tgz#16a9e409616b23fef3ccbedb8d42f13bff80295e"
+  integrity sha512-EAcmnPkxpntVL+DS7bO1zhcZNvCkxqtkd0ZY53h06GNQ3DEkkGZ/gKgmDv6DdZQGj9BgfSPKtJJ7Dp1GPP8f7w==
 
 bottleneck@^2.15.3:
   version "2.19.5"