Bump @types/node from 18.16.18 to 20.4.2 in /core

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 18.16.18 to 20.4.2.
- [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-type: direct:development
  update-type: version-update:semver-major
...

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

core/package.json

@@ -16,7 +16,7 @@
     "@tsconfig/node18": "^18.2.0"
   },
   "devDependencies": {
-    "@types/node": "^18.16.3",
+    "@types/node": "^20.4.2",
     "lodash": "^4.17.21",
     "moment": "^2.29.1",
     "rxjs": "^6.6.2",