Bump kotlin from 2.0.20-Beta2 to 2.0.20

Bumps `kotlin` from 2.0.20-Beta2 to 2.0.20.

Updates `org.jetbrains.kotlin:kotlin-gradle-plugin` from 2.0.20-Beta2 to 2.0.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20-Beta2...v2.0.20)

Updates `org.jetbrains.kotlin:kotlin-stdlib` from 2.0.20-Beta2 to 2.0.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20-Beta2...v2.0.20)

Updates `org.jetbrains.kotlin:kotlin-test` from 2.0.20-Beta2 to 2.0.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20-Beta2...v2.0.20)

Updates `org.jetbrains.kotlin.multiplatform` from 2.0.20-Beta2 to 2.0.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20-Beta2...v2.0.20)

Updates `org.jetbrains.kotlin.jvm` from 2.0.20-Beta2 to 2.0.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20-Beta2...v2.0.20)

Updates `org.jetbrains.kotlin.plugin.power-assert` from 2.0.20-Beta2 to 2.0.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20-Beta2...v2.0.20)

Updates `org.jetbrains.kotlin.plugin.serialization` from 2.0.20-Beta2 to 2.0.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.20-Beta2...v2.0.20)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-gradle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin:kotlin-test
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.multiplatform
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.plugin.power-assert
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 dokka = "1.9.20"
-kotlin = "2.0.20-Beta2"
+kotlin = "2.0.20"
 kover = "0.8.2"
 knit = "0.5.0"
 spotless="6.25.0"