Dokka Gradle plugin V1 is deprecated migrate to V2

[hossain-khan]

warning: Dokka Gradle plugin V1 is deprecated

Dokka Gradle plugin V1 is deprecated, and will be removed in Dokka version 2.1.0
Please migrate to Dokka Gradle plugin V2. This will require updating your project.
To learn about migrating read the migration guide https://kotl.in/dokka-gradle-migration

To start migrating to Dokka Gradle plugin V2 add
    org.jetbrains.dokka.experimental.gradle.pluginMode=V2EnabledWithHelpers
into your project's `gradle.properties` file.

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