Bump @types/node from 18.19.113 to 25.6.0

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 18.19.113 to 25.6.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-version: 25.6.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -82,7 +82,7 @@
     "@angular/compiler-cli": "^21.2.9",
     "@types/express": "^4.17.17",
     "@types/jasmine": "~5.1.0",
-    "@types/node": "^18.18.0",
+    "@types/node": "^25.6.0",
     "@types/showdown": "^2.0.6",
     "@typescript-eslint/eslint-plugin": "8.57.2",
     "@typescript-eslint/parser": "8.57.2",