fix: packages/@misk/dev/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-SERIALIZEJAVASCRIPT-6147607

packages/@misk/dev/package.json

@@ -31,7 +31,7 @@
     "@types/styled-components": "4.4.3",
     "@types/webpack": "4.41.13",
     "@types/webpack-env": "1.15.2",
-    "copy-webpack-plugin": "5.1.1",
+    "copy-webpack-plugin": "9.0.1",
     "cross-env": "7.0.2",
     "css-loader": "3.5.3",
     "fibers": "5.0.0",
@@ -51,7 +51,7 @@
     "tslib": "2.3.1",
     "typescript": "3.9.10",
     "typescript-plugin-styled-components": "1.4.4",
-    "webpack": "4.43.0",
+    "webpack": "5.1.1",
     "webpack-bundle-analyzer": "3.7.0",
     "webpack-cli": "3.3.11",
     "webpack-dev-server": "4.3.1",