Bump ethereumjs-util from 6.1.0 to 6.2.0 (#1988)

Bumps [ethereumjs-util](https://github.com/ethereumjs/ethereumjs-util) from 6.1.0 to 6.2.0.
- [Release notes](https://github.com/ethereumjs/ethereumjs-util/releases)
- [Changelog](https://github.com/ethereumjs/ethereumjs-util/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ethereumjs/ethereumjs-util/compare/v6.1.0...v6.2.0)

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

package-lock.json

@@ -3188,6 +3188,21 @@
             "ethereumjs-util": "^6.0.0"
           }
         },
+        "ethereumjs-util": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz",
+          "integrity": "sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==",
+          "dev": true,
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "0.1.6",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
+        },
         "ethers": {
           "version": "4.0.37",
           "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.37.tgz",
@@ -3378,18 +3393,32 @@
       }
     },
     "ethereumjs-util": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz",
-      "integrity": "sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==",
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.0.tgz",
+      "integrity": "sha512-vb0XN9J2QGdZGIEKG2vXM+kUdEivUfU6Wmi5y0cg+LRhDYKnXIZ/Lz7XjFbHRR9VIKq2lVGLzGBkA++y2nOdOQ==",
       "dev": true,
       "requires": {
+        "@types/bn.js": "^4.11.3",
         "bn.js": "^4.11.0",
         "create-hash": "^1.1.2",
         "ethjs-util": "0.1.6",
-        "keccak": "^1.0.2",
-        "rlp": "^2.0.0",
-        "safe-buffer": "^5.1.1",
+        "keccak": "^2.0.0",
+        "rlp": "^2.2.3",
         "secp256k1": "^3.0.1"
+      },
+      "dependencies": {
+        "keccak": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/keccak/-/keccak-2.0.0.tgz",
+          "integrity": "sha512-rKe/lRr0KGhjoz97cwg+oeT1Rj/Y4cjae6glArioUC8JBF9ROGZctwIaaruM7d7naovME4Q8WcQSO908A8qcyQ==",
+          "dev": true,
+          "requires": {
+            "bindings": "^1.2.1",
+            "inherits": "^2.0.3",
+            "nan": "^2.2.1",
+            "safe-buffer": "^5.1.0"
+          }
+        }
       }
     },
     "ethereumjs-wallet": {

package.json

@@ -56,7 +56,7 @@
     "eslint-plugin-node": "^10.0.0",
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.1",
-    "ethereumjs-util": "^6.1.0",
+    "ethereumjs-util": "^6.2.0",
     "ganache-cli": "^6.7.0",
     "ganache-cli-coverage": "https://github.com/frangio/ganache-cli/releases/download/v6.4.1-coverage/ganache-cli-coverage-6.4.1.tgz",
     "http-server": "^0.11.1",