Updated AGP to 8.1.0 and Kotlin to 1.9.0 (#111)

* Updated AGP to 8.1.0 and Kotlin to 1.9.0

Signed-off-by: Arnau Mora <[email protected]>

* Set Dokka to latest version

Signed-off-by: Arnau Mora <[email protected]>

---------

Signed-off-by: Arnau Mora <[email protected]>

Author: ArnyminerZ

build.gradle.kts

@@ -3,9 +3,9 @@
  **************************************************************************************************/
 
 plugins {
-    id("com.android.library") version "8.0.1" apply false
-    id("org.jetbrains.kotlin.android") version "1.8.21" apply false
-    id("org.jetbrains.dokka") version "1.8.10" apply false
+    id("com.android.library") version "8.1.0" apply false
+    id("org.jetbrains.kotlin.android") version "1.9.0" apply false
+    id("org.jetbrains.dokka") version "1.8.20" apply false
 }
 
 group = "at.bitfire"