Update goo.gle/a2a-inspector-app

[longfin]

Since using A2A Python SDK 0.3.0+, it might support new A2A card default address (i.e., /.well-known/agent-card.json) but I get bellow error with new A2A Server only serving /.well-known/agent-card.json.

Please release a new version to goo.gle/a2a-inspector-app. 🙏

p.s. If backward compatibility is a concern, supporting both could be a viable solution.