fix(transaction-update): replace ethereumjs-util with @ethereumjs/util (

#720)

Co-authored-by: António Regadas <apregadas@gmail.com>

README.MD

@@ -47,7 +47,7 @@ To install, for example, react as a dependency into all packages, you can use th
 If you want to install react as a dependency only to a particular package, execute the following command:
 
 `$ lerna add react --scope my-package`
-`$ npx lerna add ethereumjs-util --scope=@metamask-institutional/custody-keyring`
+`$ npx lerna add @ethereumjs/util --scope=@metamask-institutional/custody-keyring`
 
 If you have installed, react for every package but would like to upgrade/downgrade to a particular version only for a specific package, then you can do it like this:
 

packages/transactionUpdate/package.json

@@ -29,12 +29,12 @@
   },
   "gitHead": "",
   "dependencies": {
+    "@ethereumjs/util": "^8.0.5",
     "@metamask-institutional/custody-keyring": "^1.1.1",
     "@metamask-institutional/sdk": "^0.1.27",
     "@metamask-institutional/types": "^1.1.0",
     "@metamask-institutional/websocket-client": "^0.2.1",
-    "@metamask/obs-store": "^8.0.0",
-    "ethereumjs-util": "^7.1.5"
+    "@metamask/obs-store": "^8.0.0"
   },
   "devDependencies": {
     "ts-jest": "26.4.4"

packages/transactionUpdate/src/TransactionUpdate.ts

@@ -1,3 +1,4 @@
+import { toChecksumAddress } from "@ethereumjs/util";
 import { CustodyKeyring, MMIConfiguration, MmiConfigurationController } from "@metamask-institutional/custody-keyring";
 import { mapTransactionStatus } from "@metamask-institutional/sdk";
 import {
@@ -10,7 +11,6 @@ import {
 } from "@metamask-institutional/types";
 import { WebsocketClientController } from "@metamask-institutional/websocket-client";
 import { ObservableStore } from "@metamask/obs-store";
-import { toChecksumAddress } from "ethereumjs-util";
 import { EventEmitter } from "events";
 
 import { POLL_TRANSACTION_RETRIES, TRANSACTION_POLLING_INTERVAL } from "./constants";