Bump org.jetbrains.dokka:versioning-plugin from 1.9.10 to 1.9.20

Bumps [org.jetbrains.dokka:versioning-plugin](https://github.com/Kotlin/dokka) from 1.9.10 to 1.9.20.
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](Kotlin/dokka@v1.9.10...v1.9.20)

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

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

build.gradle.kts

@@ -42,7 +42,7 @@ dependencies {
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
     testImplementation("org.jetbrains.kotlin:kotlin-test")
     testImplementation("io.ktor:ktor-client-mock:$ktorVersion")
-    dokkaHtmlPlugin("org.jetbrains.dokka:versioning-plugin:1.9.10")
+    dokkaHtmlPlugin("org.jetbrains.dokka:versioning-plugin:1.9.20")
 
     implementation("io.ktor:ktor-client-core:$ktorVersion")
     implementation("io.ktor:ktor-client-cio:$ktorVersion")
@@ -79,7 +79,7 @@ sourceSets.test {
 buildscript {
     dependencies {
         classpath("org.jetbrains.dokka:dokka-base:1.9.10")
-        classpath("org.jetbrains.dokka:versioning-plugin:1.9.10")
+        classpath("org.jetbrains.dokka:versioning-plugin:1.9.20")
     }
 }