Update kotlin monorepo to v2.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
org.jetbrains.kotlin:kotlin-stdlib-jdk8 (source)	2.3.21 → 2.4.0
org.jetbrains.kotlin:kotlin-gradle-plugin (source)	2.3.21 → 2.4.0

---

Configuration

📅 Schedule: (in timezone Europe/Berlin)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[github-actions]

SpotBugs

Category	Base	New
Bad practice	34	34
Correctness	29	29
Dodgy code	15	15
Internationalization	6	6
Malicious code vulnerability	26	26
Multithreaded correctness	9	9
Performance	9	9
Total	128	128