[Bug] Remaining map output when enable the stage retry on fetch failure

### Code of Conduct

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### Search before asking

- [X] I have searched in the [issues](https://github.com/apache/incubator-uniffle/issues?q=is%3Aissue) and found no similar issues.

### Describe the bug

We should Implicitly unregister map output on fetch failure

### Affects Version(s)

master

### Uniffle Server Log Output

_No response_

### Uniffle Engine Log Output

_No response_

### Uniffle Server Configurations

_No response_

### Uniffle Engine Configurations

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### Additional context

_No response_

### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

The issue names no files or tests. Start by tracing map-output registration and fetch-failure handling in the Java shuffle path; done means map output is implicitly unregistered when fetch failure triggers stage retry, with the behavior verified by a relevant regression test.

Written by the indexing model from the issue text.