[web] Bump webpack from 5.99.7 to 5.99.9 in /frontend/web

Bumps [webpack](https://github.com/webpack/webpack) from 5.99.7 to 5.99.9.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.99.7...v5.99.9)

---
updated-dependencies:
- dependency-name: webpack
  dependency-version: 5.99.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

frontend/web/package.json

@@ -36,7 +36,7 @@
         "mini-css-extract-plugin": "^2.9.0",
         "prettier": "^3.5.3",
         "uglifyjs-webpack-plugin": "^2.2.0",
-        "webpack": "^5.99.7",
+        "webpack": "^5.99.9",
         "webpack-cli": "^6.0.1",
         "webpack-dev-server": "^5.2.1"
     }

frontend/web/yarn.lock

@@ -3740,10 +3740,10 @@ webpack-sources@^3.2.3:
   resolved "https://registry.npmjs.org/webpack-sources/-/webpack-sources-3.2.3.tgz#2d4daab8451fd4b240cc27055ff6a0c2ccea0cde"
   integrity sha512-/DyMEOrDgLKKIG0fmvtz+4dUX/3Ghozwgm6iPp8KRhvn+eQf9+Q7GWxVNMk3+uCPWfdXYC4ExGBckIXdFEfH1w==
 
-webpack@^5.99.7:
-  version "5.99.7"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-5.99.7.tgz#60201c1ca66da046b07d006c2f6e0cc5e8a7bdba"
-  integrity sha512-CNqKBRMQjwcmKR0idID5va1qlhrqVUKpovi+Ec79ksW8ux7iS1+A6VqzfZXgVYCFRKl7XL5ap3ZoMpwBJxcg0w==
+webpack@^5.99.9:
+  version "5.99.9"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-5.99.9.tgz#d7de799ec17d0cce3c83b70744b4aedb537d8247"
+  integrity sha512-brOPwM3JnmOa+7kd3NsmOUOwbDAj8FT9xDsG3IW0MgbN9yZV7Oi/s/+MNQ/EcSMqw7qfoRyXPoeEWT8zLVdVGg==
   dependencies:
     "@types/eslint-scope" "^3.7.7"
     "@types/estree" "^1.0.6"