update libs and changelog with thanks to Anton Lakotka

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## 9.3.0
 
+This release become possible thanks to [Anton Lakotka](https://youtrack.jetbrains.com/users/anton.lakotka)
+
 ## 9.2.0
 
 **Add support of [Telegram Bots API 6.9](https://core.telegram.org/bots/api-changelog#september-22-2023)**

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 
-kotlin = "1.9.20-Beta2"
+kotlin = "1.9.20-Beta3"
 kotlin-serialization = "1.6.0"
 kotlin-coroutines = "1.7.3"