Bump @types/node from 24.8.1 to 24.9.0 in /concert-demos-gui

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 24.8.1 to 24.9.0.
- [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: 24.9.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

concert-demos-gui/package.json

@@ -30,7 +30,7 @@
     "@angular/language-service": "~20.3.6",
     "@types/jasmine": "~5.1.12",
     "@types/jasminewd2": "~2.0.13",
-    "@types/node": "~24.8.1",
+    "@types/node": "~24.9.0",
     "codelyzer": "^6.0.2",
     "jasmine-core": "~5.12.0",
     "jasmine-spec-reporter": "~7.0.0",