Bump kotlin from 2.3.10 to 2.3.20

Bumps `kotlin` from 2.3.10 to 2.3.20.

Updates `org.jetbrains.kotlin:kotlin-gradle-plugin` from 2.3.10 to 2.3.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.3.10...v2.3.20)

Updates `org.jetbrains.kotlin:kotlin-test` from 2.3.10 to 2.3.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.3.10...v2.3.20)

Updates `org.jetbrains.kotlin.multiplatform` from 2.3.10 to 2.3.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.3.10...v2.3.20)

Updates `org.jetbrains.kotlin.plugin.spring` from 2.3.10 to 2.3.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.3.10...v2.3.20)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-gradle-plugin
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin:kotlin-test
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.multiplatform
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.plugin.spring
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 # https://plugins.gradle.org/plugin/org.jetbrains.kotlin.jvm
-kotlin = "2.3.10"
+kotlin = "2.3.20"
 # https://github.com/Kotlin/kotlinx-io
 kotlinx-io = "0.9.0"
 # https://github.com/Kotlin/kotlinx-datetime