Bump webpack and webpack-cli

Bumps [webpack](https://github.com/webpack/webpack) and [webpack-cli](https://github.com/webpack/webpack-cli). These dependencies needed to be updated together.

Updates `webpack` from 4.46.0 to 5.18.0
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.46.0...v5.18.0)

Updates `webpack-cli` from 3.3.12 to 4.4.0
- [Release notes](https://github.com/webpack/webpack-cli/releases)
- [Changelog](https://github.com/webpack/webpack-cli/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack-cli/compare/[email protected])

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -53,8 +53,8 @@
     "tsconfig-paths": "^3.9.0",
     "tsconfig-paths-webpack-plugin": "^3.2.0",
     "typescript": "^4.0.2",
-    "webpack": "^4.43.0",
-    "webpack-cli": "^3.3.12",
+    "webpack": "^5.18.0",
+    "webpack-cli": "^4.4.0",
     "webpack-dev-server": "^3.11.0"
   },
   "dependencies": {},