Update kotlin monorepo to v2.3.20

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
org.jetbrains.kotlin:kotlin-scripting-compiler (source)	2.3.10 → 2.3.20
org.jetbrains.kotlin:kotlin-main-kts (source)	2.3.10 → 2.3.20
org.jetbrains.kotlin:kotlin-compiler-embeddable (source)	2.3.10 → 2.3.20
org.jetbrains.kotlin:kotlin-compiler (source)	2.3.10 → 2.3.20

---

Configuration

📅 Schedule: 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 is behind base branch, 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.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.16%. Comparing base (23858ab) to head (307c9dc).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #2324   +/-   ##
=========================================
  Coverage     82.16%   82.16%           
+ Complexity     4822     4821    -1     
=========================================
  Files           472      472           
  Lines         15036    15036           
  Branches       1905     1905           
=========================================
  Hits          12354    12354           
  Misses         1989     1989           
  Partials        693      693           

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.