chore: Bump @babel/preset-env in /examples/openfeature_web/webapp (#4158)

Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.28.3 to 7.28.5.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.28.5/packages/babel-preset-env)

---
updated-dependencies:
- dependency-name: "@babel/preset-env"
  dependency-version: 7.28.5
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

examples/openfeature_web/webapp/package-lock.json

@@ -31,7 +31,7 @@
   "license": "MIT",
   "devDependencies": {
     "@babel/eslint-parser": "^7.28.5",
-    "@babel/preset-env": "^7.28.3",
+    "@babel/preset-env": "^7.28.5",
     "autoprefixer": "^10.4.21",
     "babel-loader": "^10.0.0",
     "babel-plugin-transform-class-properties": "^6.24.1",