Bump bn.js from 5.1.2 to 5.1.3 in /token-swap/js

Bumps [bn.js](https://github.com/indutny/bn.js) from 5.1.2 to 5.1.3.
- [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/v5.1.2...v5.1.3)

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

token-swap/js/package-lock.json

@@ -2099,9 +2099,9 @@
       "dev": true
     },
     "bn.js": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.1.2.tgz",
-      "integrity": "sha512-40rZaf3bUNKTVYu9sIeeEGOg7g14Yvnj9kH7b50EiwX0Q7A6umbvfI5tvHaOERH0XigqKkfLkFQxzb4e6CIXnA=="
+      "version": "5.1.3",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.1.3.tgz",
+      "integrity": "sha512-GkTiFpjFtUzU9CbMeJ5iazkCzGL3jrhzerzZIuqLABjbwRaFt33I9tUdSNryIptM+RxDet6OKm2WnLXzW51KsQ=="
     },
     "boolbase": {
       "version": "1.0.0",

token-swap/js/package.json

@@ -30,7 +30,7 @@
   "dependencies": {
     "@babel/runtime": "^7.11.2",
     "@solana/web3.js": "^0.71.6",
-    "bn.js": "^5.0.0",
+    "bn.js": "^5.1.3",
     "buffer-layout": "^1.2.0",
     "dotenv": "8.2.0",
     "json-to-pretty-yaml": "^1.2.2",