build(deps-dev): bump @types/node from 20.19.0 to 25.5.0

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 20.19.0 to 25.5.0.
- [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: 25.5.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -18,7 +18,7 @@
         "@slack/web-api": "7.15.0"
     },
     "devDependencies": {
-        "@types/node": "20.19.0",
+        "@types/node": "25.5.0",
         "@typescript-eslint/eslint-plugin": "8.57.2",
         "@typescript-eslint/parser": "8.57.2",
         "@vercel/ncc": "0.38.4",