deps(deps): bump the kotlin-ecosystem group across 1 directory with 5 updates

Bumps the kotlin-ecosystem group with 5 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [org.jetbrains.kotlin:kotlin-bom](https://github.com/JetBrains/kotlin) | `2.3.10` | `2.3.20` |
| [org.jetbrains.kotlin:kotlin-gradle-plugin](https://github.com/JetBrains/kotlin) | `2.3.10` | `2.3.20` |
| [org.jetbrains.kotlin.plugin.serialization](https://github.com/JetBrains/kotlin) | `2.3.10` | `2.3.20` |
| [org.jetbrains.kotlin.plugin.spring](https://github.com/JetBrains/kotlin) | `2.3.10` | `2.3.20` |
| [org.jetbrains.kotlinx:kotlinx-io-core](https://github.com/Kotlin/kotlinx-io) | `0.7.0` | `0.9.0` |



Updates `org.jetbrains.kotlin:kotlin-bom` 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-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.plugin.serialization` 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)

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.kotlinx:kotlinx-io-core` from 0.7.0 to 0.9.0
- [Release notes](https://github.com/Kotlin/kotlinx-io/releases)
- [Changelog](https://github.com/Kotlin/kotlinx-io/blob/master/CHANGELOG.md)
- [Commits](Kotlin/kotlinx-io@0.7.0...0.9.0)

Updates `org.jetbrains.kotlin.plugin.serialization` 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-bom
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-ecosystem
- dependency-name: org.jetbrains.kotlin:kotlin-gradle-plugin
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-ecosystem
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-ecosystem
- dependency-name: org.jetbrains.kotlin.plugin.spring
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-ecosystem
- dependency-name: org.jetbrains.kotlin:kotlin-gradle-plugin
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-ecosystem
- dependency-name: org.jetbrains.kotlinx:kotlinx-io-core
  dependency-version: 0.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: kotlin-ecosystem
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-ecosystem
- dependency-name: org.jetbrains.kotlin.plugin.spring
  dependency-version: 2.3.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: kotlin-ecosystem
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -14,10 +14,10 @@ jetsign = "45.47"
 junit = "5.8.2"
 knit = "0.5.1"
 kotest = "6.0.7"
-kotlin = "2.3.10"
+kotlin = "2.3.20"
 kotlinx-coroutines = "1.10.2"
 kotlinx-datetime = "0.7.1"
-kotlinx-io = "0.7.0"
+kotlinx-io = "0.9.0"
 kotlinx-serialization = "1.10.0" # check with IJ
 kotlinx-schema = "0.4.4"
 kover = "0.9.7"