build(deps-dev): bump css-minimizer-webpack-plugin in /services/idp

Bumps [css-minimizer-webpack-plugin](https://github.com/webpack/css-minimizer-webpack-plugin) from 7.0.4 to 8.0.0.
- [Release notes](https://github.com/webpack/css-minimizer-webpack-plugin/releases)
- [Changelog](https://github.com/webpack/css-minimizer-webpack-plugin/blob/main/CHANGELOG.md)
- [Commits](webpack/css-minimizer-webpack-plugin@v7.0.4...v8.0.0)

---
updated-dependencies:
- dependency-name: css-minimizer-webpack-plugin
  dependency-version: 8.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

services/idp/package.json

@@ -114,7 +114,7 @@
     "case-sensitive-paths-webpack-plugin": "2.4.0",
     "cldr": "^7.9.0",
     "css-loader": "^7.1.4",
-    "css-minimizer-webpack-plugin": "^7.0.4",
+    "css-minimizer-webpack-plugin": "^8.0.0",
     "dotenv": "16.4.7",
     "dotenv-expand": "^12.0.3",
     "eslint": "^7.32.0",