Bump webpack from 5.87.0 to 5.88.0 in /src/Costellobot

Bumps [webpack](https://github.com/webpack/webpack) from 5.87.0 to 5.88.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.87.0...v5.88.0)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/Costellobot/package.json

@@ -40,7 +40,7 @@
     "ts-loader": "^9.4.3",
     "tsify": "^5.0.4",
     "typescript": "^5.1.3",
-    "webpack": "^5.87.0",
+    "webpack": "^5.88.0",
     "webpack-cli": "^5.1.4",
     "webpack-remove-empty-scripts": "^1.0.3"
   }