chore(go/plugins/googlegenai): expose `gemini-2.5-pro-preview-05-06`#2870

hugoaguirre merged 3 commits intomainfirebase/genkit:mainfrom

haguirre/gemini-2.5-pro-preview-05-06firebase/genkit:haguirre/gemini-2.5-pro-preview-05-06Copy head branch name to clipboard