feat: Add Tool.exa_ai_search for Gemini Enterprise API

feat: Add response_format and Translation_config in GenerationConfig

PiperOrigin-RevId: 936848756

Author: jaycee-li

agentplatform/_genai/types/__init__.py

@@ -3573,8 +3573,8 @@
     "DefaultContainerCategory",
     "PostSnapshotAction",
     "Framework",
-    "SkillState",
     "SkillSource",
+    "SkillState",
     "LaunchStage",
     "OpenSourceCategory",
     "VersionState",