Bump the all group with 3 updates

Bumps the all group with 3 updates: [org.jetbrains.kotlin:kotlin-stdlib-jdk8](https://github.com/JetBrains/kotlin), [org.jetbrains.kotlin.jvm](https://github.com/JetBrains/kotlin) and [org.jetbrains.kotlin.plugin.serialization](https://github.com/JetBrains/kotlin).


Updates `org.jetbrains.kotlin:kotlin-stdlib-jdk8` from 1.9.20-RC to 1.9.20-RC2
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.20-RC...v1.9.20-RC2)

Updates `org.jetbrains.kotlin.jvm` from 1.9.20-RC to 1.9.20-RC2
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.20-RC...v1.9.20-RC2)

Updates `org.jetbrains.kotlin.plugin.serialization` from 1.9.20-RC to 1.9.20-RC2
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.20-RC...v1.9.20-RC2)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib-jdk8
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
...

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

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ hikari = "5.0.1"
 jooq = "3.18.7"
 jsoup = "1.16.2"
 junit = "5.10.0"
-kotlin = "1.9.20-RC"
+kotlin = "1.9.20-RC2"
 ktor = "2.3.5"
 logback = "1.4.11"
 micrometer = "1.11.5"