Bump webpack in /otoroshi/test/resources/grpc-server

Bumps [webpack](https://github.com/webpack/webpack) from 5.101.3 to 5.104.1.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Changelog](https://github.com/webpack/webpack/blob/main/CHANGELOG.md)
- [Commits](webpack/webpack@v5.101.3...v5.104.1)

---
updated-dependencies:
- dependency-name: webpack
  dependency-version: 5.104.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

otoroshi/test/resources/grpc-server/package.json

@@ -11,7 +11,7 @@
     "grpc-web": "~2.0.2",
     "lodash": "~4.17.0",
     "parcel": "^2.16.3",
-    "webpack": "5.101.3",
+    "webpack": "5.104.1",
     "webpack-cli": "~5.1.1"
   },
   "dependencies": {