`gemini-2.0-flash` and `gemini-2.0-flash-lite` discontinuing on June 1st, 2026.

gemini-2.0-flash and gemini-2.0-flash-lite are discontinuing on June 1st, 2026. There are a few extensions that use these. For example, gemini-2.0-flash is the default entry for the model in firestore-genai-chatbot.

Reference: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/models/gemini/2-0-flash