Gemini Pro API接続エラー: cURL error 56: Recv failure: Connection reset by peer (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://us-central1-aiplatform.googleapis.com/v1/projects/ai-media-458211/locations/us-central1/publishers/google/models/gemini-2.5-pro-preview-03-25:generateContent