fix: packages/orderbook/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BRACES-6838727
- https://snyk.io/vuln/SNYK-JS-ELLIPTIC-8187303
- https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116
- https://snyk.io/vuln/SNYK-JS-MICROMATCH-6838728
- https://snyk.io/vuln/SNYK-JS-UNSETVALUE-2400660

packages/orderbook/package.json

@@ -37,7 +37,7 @@
         "@types/jest": "^24.0.17",
         "@types/sinon": "^2.2.2",
         "@types/websocket": "^0.0.39",
-        "jest": "^24.8.0",
+        "jest": "^27.0.2",
         "shx": "^0.2.2",
         "sinon": "^4.0.0",
         "ts-jest": "^24.0.2",
@@ -49,9 +49,9 @@
         "@0x/assert": "^3.0.9",
         "@0x/connect": "^6.0.9",
         "@0x/contracts-dev-utils": "^1.3.5",
-        "@0x/mesh-rpc-client": "^7.0.4-beta-0xv3",
+        "@0x/mesh-rpc-client": "^8.1.0",
         "@0x/order-utils": "^10.3.0",
-        "@0x/utils": "^5.5.1"
+        "@0x/utils": "^6.4.0"
     },
     "gitHead": "4f91bfd907996b2f4dd383778b50c479c2602b56"
 }