Bump webpack from 4.46.0 to 4.47.0 in /services/idp

Bumps [webpack](https://github.com/webpack/webpack) from 4.46.0 to 4.47.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](https://github.com/webpack/webpack/compare/v4.46.0...v4.47.0)

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

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

services/idp/package.json

@@ -150,7 +150,7 @@
     "source-map-explorer": "^2.5.3",
     "typescript": "^4.9.5",
     "url-loader": "4.1.1",
-    "webpack": "4.46.0",
+    "webpack": "4.47.0",
     "webpack-manifest-plugin": "4.1.1",
     "workbox-webpack-plugin": "7.0.0"
   }