Spring AI Support for Gemini 2.5?

Expected Behavior

Support for latest parameters like thinkingConfig which is missing from the API right now

Current Behavior

Missing API from ChatConfig

Context

Right now, because of this I can't use thinkingConfig for gemini 2.5 and it might trigger "thinking" even if I don't want to because it is enabled by default which results in a LOT of tokens usage.

Comment From: argmnt

Seems like under org.springframework.ai.vertexai.gemini VertexAiGeminiChatModel class uses google.cloud.vertexai.v1.GenerationConfig (1.22.0) and this comes from Google client SDK and this class does not support thinkingConfig since spring-ai v1.0.0 uses com.google.api.grpc:proto-google-cloud-vertexai-v1:1.22.0.

@markpollack Is it planned to integrate the newer versions of Google Client SDK at the moment?

Cause seems like newer SDKs looks like supports thinkingConfig

Newer Version Google Client SDK

Thanks for answer in advance