chore(spec): Update default protocol version to 0.3.0#366

holtskinner merged 1 commit intomaina2aproject/a2a-python:mainfrom

auto-update-a2a-types-6a152a83ada222c0ca88e38ca95fc0c2b746c802a2aproject/a2a-python:auto-update-a2a-types-6a152a83ada222c0ca88e38ca95fc0c2b746c802Copy head branch name to clipboard