fix: packages/eventual-send/integration-test/package.json to reduce v…

…ulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ELLIPTIC-8187303

packages/eventual-send/integration-test/package.json

@@ -29,14 +29,14 @@
   "devDependencies": {
     "browserify": "^16.2.3",
     "esm": "^3.2.11",
-    "parcel": "^1.12.4",
+    "parcel": "^2.0.0",
     "puppeteer": "^1.13.0",
     "rollup": "^1.4.1",
     "rollup-plugin-node-resolve": "^4.0.1",
     "rollup-plugin-replace": "^2.1.0",
     "tape": "^4.10.1",
     "tape-promise": "^4.0.0",
-    "webpack": "^4.29.6",
+    "webpack": "^5.0.0",
     "webpack-cli": "^3.2.3"
   }
 }