[issue43144] test_unicodedata: test_normalization uses network but doesn't depend on network resource

[Dong-hee Na]

Change by Dong-hee Na <donghee.na at python.org>:


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versions: +Python 3.10, Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43144>
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