fix(embeddings): replace deprecated gemini-embedding-exp-03-07 with gemini-embedding-001#5713

HenryHengZJ merged 4 commits intoFlowiseAI:mainFlowiseAI/Flowise:mainfrom

adolfousier:feature/update-gemini-embedding-modeladolfousier/flowisebackend:feature/update-gemini-embedding-modelCopy head branch name to clipboard