fix(deps): update dependency bn.js to v5.2.3 [security]

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
   "dependencies": {
     "@google-cloud/kms": "3.3.0",
     "asn1.js": "5.4.1",
-    "bn.js": "5.2.1",
+    "bn.js": "5.2.3",
     "ethers": "5.7.2",
     "key-encoder": "2.0.3"
   },