chore(deps): bump bn.js from 5.1.1 to 5.1.2

Bumps [bn.js](https://github.com/indutny/bn.js) from 5.1.1 to 5.1.2.
- [Release notes](https://github.com/indutny/bn.js/releases)
- [Changelog](https://github.com/indutny/bn.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/indutny/bn.js/compare/v5.1.1...v5.1.2)

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

web3.js/package-lock.json

@@ -6032,9 +6032,9 @@
       "dev": true
     },
     "bn.js": {
-      "version": "5.1.1",
+      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.1.2.tgz",
-      "integrity": "sha512-IUTD/REb78Z2eodka1QZyyEk66pciRcP6Sroka0aI3tG/iwIdYLrBD62RsubR7vqdt3WyX8p4jxeatzmRSphtA=="
+      "integrity": "sha512-40rZaf3bUNKTVYu9sIeeEGOg7g14Yvnj9kH7b50EiwX0Q7A6umbvfI5tvHaOERH0XigqKkfLkFQxzb4e6CIXnA=="
     },
     "boolbase": {
       "version": "1.0.0",