chore: add reactivex lib to gradle catalog

Author: andrea-acampora

gradle/libs.versions.toml

@@ -16,6 +16,7 @@ kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib", version.ref = "
 kotest-junit5 = { module = "io.kotest:kotest-runner-junit5", version.ref = "kotest" }
 kotest-assertions-core = { module = "io.kotest:kotest-assertions-core", version.ref = "kotest" }
 kotest-assertions-core-jvm = { module = "io.kotest:kotest-assertions-core-jvm", version.ref = "kotest" }
+reactivex = { module = "io.reactivex.rxjava3:rxkotlin", version = "3.0.1" }
 signalr = { module = "com.microsoft.signalr:signalr", version = "7.0.3" }
 
 [bundles]