build(deps-dev): bump webpack from 4.46.0 to 5.78.0

Bumps [webpack](https://github.com/webpack/webpack) from 4.46.0 to 5.78.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.46.0...v5.78.0)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -324,6 +324,6 @@
     "react-router": "^3.2.1",
     "react-test-renderer": "^16.3.2",
     "typescript": "^4.0.3",
-    "webpack": "^4.43.0"
+    "webpack": "^5.78.0"
   }
 }