Repository: kubernetes
Issue: hanging routine in TestSPDYExecutorStream/timeoutTest
Labels: kind/bug,sig/api-machinery,sig/testing,triage/accepted

### What happened?

There is a leaked routine in this test, this routine seems never quit after the test finish. 
Since there are two more similar testcase in this test without a timeout,  and there are no leaks in them.
I wonder if there is a missed cleanup in any timeout error handling branch. 

Goleak report the  leak routine as.
```
=== RUN   TestSPDYExecutorStream/timeoutTest
E0421 17:26:15.072473   46372 v2.go:104] client crashed after 1 second
    remotecommand_test.go:165: found unexpected goroutines:
        [Goroutine 185 in state runnable, with github.com/moby/spdystream.(*Stream).WriteData on top of the stack:
        goroutine 185 [runnable]:
        github.com/moby/spdystream.(*Stream).WriteData(0xc000074a00, {0xc0005754a0, 0x9, 0x10}, 0x0)
        	C:/Users/Msk/go/pkg/mod/github.com/moby/spdystream@v0.2.0/stream.go:72 +0xeb
        github.com/moby/spdystream.(*Stream).Write(0xcf79e0?, {0xc0005754a0?, 0x9, 0xc0005754a0?})
        	C:/Users/Msk/go/pkg/mod/github.com/moby/spdystream@v0.2.0/stream.go:84 +0x25
        io.WriteString({0xef1ee0, 0xc00024e0c0}, {0xdb7919, 0x9})
        	C:/Users/Msk/go/go1.20rc3/src/io/io.go:315 +0x91
        strings.(*Reader).WriteTo(0xc000581fe0, {0xef1ee0?, 0xc00024e0c0?})
        	C:/Users/Msk/go/go1.20rc3/src/strings/reader.go:143 +0x7a
        io.copyBuffer({0xef1ee0, 0xc00024e0c0}, {0xef1880, 0xc000581fe0}, {0x0, 0x0, 0x0})
        	C:/Users/Msk/go/go1.20rc3/src/io/io.go:409 +0x16e
        io.Copy(...)
        	C:/Users/Msk/go/go1.20rc3/src/io/io.go:386
        k8s.io/client-go/tools/remotecommand.writeMassiveData({0xef1ee0, 0xc00024e0c0})
        	C:/Users/Msk/Documents/GitHub/kubernetes/staging/src/k8s.io/client-go/tools/remotecommand/remotecommand_test.go:115 +0x73
        k8s.io/client-go/tools/remotecommand.fakeMassiveDataAttacher.func3()
        	C:/Users/Msk/Documents/GitHub/kubernetes/staging/src/k8s.io/client-go/tools/remotecommand/remotecommand_test.go:104 +0x45
        created by k8s.io/client-go/tools/remotecommand.fakeMassiveDataAttacher
        	C:/Users/Msk/Documents/GitHub/kubernetes/staging/src/k8s.io/client-go/tools/remotecommand/remotecommand_test.go:100 +0x18c
        ]
    --- FAIL: TestSPDYExecutorStream/timeoutTest (11.00s)
```

### What did you expect to happen?

No leak

### How can we reproduce it (as minimally and precisely as possible)?

It can be stably reproduced by add a delay before this routine
https://github.com/kubernetes/kubernetes/blob/065428befa06c1d99deb4160b4490a8bf1a377ee/staging/src/k8s.io/client-go/tools/remotecommand/remotecommand_test.go#L98-L103

### Anything else we need to know?

_No response_

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