update tor-android to 0.4.8.21

Author: n8fr8

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ navigation-fragment-ktx = "2.9.6"
 orchestrator = "1.6.1"
 retrofit = "3.0.0"
 rootbeer = "0.1.1"
-tor-android = "0.4.8.19"
+tor-android = "0.4.8.21"
 kotlin = "2.2.21"
 coroutines = "1.10.2"
 serialization = "1.9.0"