chore(deps-dev): bump @types/split2 from 3.2.1 to 4.2.3 (#6056)

---
updated-dependencies:
- dependency-name: "@types/split2"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

core/package.json

@@ -209,7 +209,7 @@
     "@types/qs": "^6.9.8",
     "@types/react": "^18.2.74",
     "@types/sinon": "^17.0.2",
-    "@types/split2": "^3.2.1",
+    "@types/split2": "^4.2.3",
     "@types/supertest": "^6.0.2",
     "@types/tar": "^6.1.11",
     "@types/touch": "^3.1.5",