[BUG] AgentFlow V2 - Google Gemini Models Incompatibility

[toi500]

Describe the bug
Google Gemini models are incompatible with the LLM JSON Structured Output mode:

: [400 Bad Request] Invalid JSON payload received.

Screenshots

Flow
Gemini-Agentflow-V2-Bug Agents.json

Setup
Flowise updated to the last commit.

Additional context
Related with this #4478

[IvanTarasenko]

I have the same problem

[HenryHengZJ]

#4713