Bump org.jetbrains.dokka from 1.8.20 to 1.9.0 (#24)

Bumps [org.jetbrains.dokka](https://github.com/Kotlin/dokka) from 1.8.20 to 1.9.0.
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v1.8.20...v1.9.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle.kts

@@ -5,7 +5,7 @@ plugins {
     signing
 
     id("org.jmailen.kotlinter") version "3.16.0"
-    id("org.jetbrains.dokka") version "1.8.20"
+    id("org.jetbrains.dokka") version "1.9.0"
 }
 
 group = "com.lapanthere"