chore(deps): bump org.jetbrains.dokka from 1.7.10 to 1.9.20

Bumps [org.jetbrains.dokka](https://github.com/Kotlin/dokka) from 1.7.10 to 1.9.20.
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v1.7.10...v1.9.20)

---
updated-dependencies:
- dependency-name: org.jetbrains.dokka
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -9,7 +9,7 @@ junit = "5.9.0"
 assertj-core = "3.24.2"
 assertj-db = "2.0.2"
 kotlin-jvm = "1.8.10"
-dokka = "1.7.10"
+dokka = "1.9.20"
 researchgate-release = "3.0.2"
 kotlin-quality = "4.2.0"
 java-driver-core = "4.15.0"