Downgrade Kotlin and KSP, update Firebase and Crashlytics

This commit reverts Kotlin and KSP versions to align with a previous state or resolve compatibility issues. It also updates Firebase and Crashlytics to their latest versions.

- Kotlin: 2.2.0 -> 2.1.21
- KSP: 2.2.0-2.0.2 -> 2.1.21-2.0.2
- Firebase: 33.16.0 -> 34.0.0
- Crashlytics: 3.0.4 -> 3.0.5

Author: softartdev

gradle/libs.versions.toml

@@ -3,11 +3,11 @@ compileSdk = "36"
 targetSdk = "36"
 minSdk = "21"
 jdk = "17"
-kotlin = "2.2.0"
-ksp = "2.2.0-2.0.2"
+kotlin = "2.1.21"
+ksp = "2.1.21-2.0.2"
 agp = "8.11.1"
 gms = "4.4.3"
-crashlytics = "3.0.4"
+crashlytics = "3.0.5"
 compose = "1.8.2"
 coroutines = "1.10.2"
 sqlDelight = "2.1.0"
@@ -35,7 +35,7 @@ androidxTestExt = "1.2.1"
 androidxTest = "1.6.2"
 androidxTestOrchestrator = "1.5.1"
 cashAppPaging = "3.3.0-alpha02-0.5.1"
-firebase = "33.16.0"
+firebase = "34.0.0"
 leakCanary = "2.14"
 junit = "4.13.2"
 mockito = "5.18.0"