chore(deps): update dependency org.jetbrains.dokka to v1.7.20

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 benchmark = "0.4.5"
 kotlin = "1.7.20"
-dokka = "1.7.10"
+dokka = "1.7.20"
 
 [libraries]
 kotlin-test-core = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }