Bump BN.js for hexstring bug fix (#3017).

Author: ricmoo

packages/bignumber/package.json

@@ -3,7 +3,7 @@
   "dependencies": {
     "@ethersproject/bytes": "^5.6.0",
     "@ethersproject/logger": "^5.6.0",
-    "bn.js": "^4.11.9"
+    "bn.js": "^5.2.1"
   },
   "description": "BigNumber library used in ethers.js.",
   "ethereum": "donations.ethers.eth",
@@ -38,7 +38,7 @@
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "sideEffects": false,
-  "tarballHash": "0x7fc9de3518055d5d8d2df4d271c5e1cacebf0cef2d7abb073a541ba56da89c0e",
+  "tarballHash": "0x9d06f811fc14ed48d49ef65d7c1ffe808cb838775f928ddc0ff5d54296515f5b",
   "types": "./lib/index.d.ts",
-  "version": "5.6.1"
+  "version": "5.6.2"
 }