fix(deps): bump core-js from 3.25.3 to 3.25.4 in /frontend (#1696)

Bumps [core-js](https://github.com/zloirock/core-js) from 3.25.3 to 3.25.4.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zloirock/core-js/compare/v3.25.3...v3.25.4)

---
updated-dependencies:
- dependency-name: core-js
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frontend/package.json

@@ -23,7 +23,7 @@
     "@nuxtjs/pwa": "^3.3.5",
     "@vue/composition-api": "^1.7.0",
     "@vueuse/core": "^9.2.0",
-    "core-js": "^3.25.3",
+    "core-js": "^3.25.4",
     "date-fns": "^2.29.3",
     "fuse.js": "^6.6.2",
     "isomorphic-dompurify": "^0.22.0",