Update kotlin monorepo to v2.3.20

[nautilus-renovate-2]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlin.plugin.serialization (source)	2.3.10 → 2.3.20
org.jetbrains.kotlin.android (source)	2.3.10 → 2.3.20
org.jetbrains.kotlin.jvm (source)	2.3.10 → 2.3.20
org.jetbrains.kotlin:kotlin-test-junit5 (source)	2.3.10 → 2.3.20

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Configuration

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This PR has been generated by Renovate Bot.

[github-actions]

Test Results

163 tests  ±0   163 ✅ ±0   0s ⏱️ -1s
 19 suites ±0     0 💤 ±0 
 19 files   ±0     0 ❌ ±0 

Results for commit 749fad5. ± Comparison against base commit 9490b8d.