chore: Update MerkleTree import (#205)

* chore: Update MerkleTree import

Should import from @uma/common instead of no longer maintained @uma/merkle-distributor

* Update package.json

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@across-protocol/contracts-v2",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "author": "UMA Team",
   "license": "AGPL-3.0",
   "repository": {
@@ -35,10 +35,9 @@
     "@defi-wonderland/smock": "^2.0.7",
     "@eth-optimism/contracts": "^0.5.11",
     "@openzeppelin/contracts": "^4.7.3",
-    "@uma/common": "^2.28.0",
+    "@uma/common": "^2.28.4",
     "@uma/contracts-node": "^0.3.18",
     "@uma/core": "^2.41.0",
-    "@uma/merkle-distributor": "^1.3.38",
     "arb-bridge-eth": "^0.7.4",
     "arb-bridge-peripherals": "^1.0.5"
   },

test/merkle-distributor/MerkleDistributor.ts

@@ -1,9 +1,8 @@
 /* eslint-disable no-unused-expressions */
 
 import { ethers, getContractFactory, SignerWithAddress, Contract, toWei, toBN, expect } from "../utils";
-import { MerkleTree } from "@uma/merkle-distributor";
 import { deployErc20 } from "../gas-analytics/utils";
-import { MAX_UINT_VAL } from "@uma/common";
+import { MAX_UINT_VAL, MerkleTree } from "@uma/common";
 
 type Recipient = {
   account: string;