Bump dokka from 1.4.20 to 1.4.20-dev-65

Bumps `dokka` from 1.4.20 to 1.4.20-dev-65.

Updates `dokka-core` from 1.4.20 to 1.4.20-dev-65
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](https://github.com/Kotlin/dokka/commits)

Updates `dokka-gradle-plugin` from 1.4.20 to 1.4.20-dev-65
- [Release notes](https://github.com/Kotlin/dokka/releases)
- [Commits](https://github.com/Kotlin/dokka/commits)

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

plugins-catalog/build.gradle.kts

@@ -20,7 +20,7 @@ val autoInclude = "1.3"
 val changelog = "1.1.2"
 val versions = "0.38.0"
 val detekt = "1.16.0"
-val dokka = "1.4.20"
+val dokka = "1.4.20-dev-65"
 val ktfmt = "0.21"
 val kotlin = "1.4.31"
 val kotlinBinaryValidator = "0.4.0"