build(deps): bump dokka from 1.9.20 to 2.0.0

Bumps `dokka` from 1.9.20 to 2.0.0.

Updates `org.jetbrains.dokka:dokka-gradle-plugin` from 1.9.20 to 2.0.0
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v1.9.20...v2.0.0)

Updates `org.jetbrains.dokka:dokka-base` from 1.9.20 to 2.0.0
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v1.9.20...v2.0.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.dokka:dokka-gradle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.jetbrains.dokka:dokka-base
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 kotlin = "2.0.10"
 kotlinx-coroutines = "1.8.1"
 kotlinx-serialization = "1.7.1"
-dokka = "1.9.20"
+dokka = "2.0.0"
 openjdk-jmh = "1.37"
 ktor = "2.3.12"
 log4j = "2.24.3"