Test fails for the samples of golang.

[MaoJianwei]

What happened?

cd a2a-samples/samples/go
go test ./...

--- FAIL: TestSendTaskStreaming (0.00s)
    client_test.go:235: expected method message/send, got message/stream
FAIL
FAIL    a2a/client      0.020s
?       a2a/models      [no test files]
ok      a2a/server      (cached)
FAIL

Relevant log output

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