EmbeddingGemma 2 weights launch on Hugging Face and Kaggle with LiteRT and MediaPipe support

Google for Developers made model weights for EmbeddingGemma 2 available on Hugging Face and Kaggle.

The model provides out-of-the-box integration support for LiteRT, MediaPipe, LangChain, and llama_index, as outlined in the [EmbeddingGemma 2 developer guide](https://blog.google/innovation-and-ai/technology/developers-tools/embeddinggemma-2/).