Revert vertex ai version bump

Author: thatfiredev

gradle/libs.versions.toml

@@ -10,7 +10,7 @@ lifecycleRuntimeKtx = "2.8.5"
 activityCompose = "1.9.2"
 composeBom = "2024.09.01"
 reactiveStreams = "1.0.4"
-vertexAI = "16.0.0-beta05"
+vertexAI = "16.0.0-beta04"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }