Fixed Ivy Frontend Test: numpy - linalg.scipy.linalg.norm

[rp097]

PR Description

The test was passing in a dtype (float16) to torch which is not actually supported by the torch’s native framework itself. I added that in the backend under unsupported dtypes. All test cases then passed.

Related Issue

Closes #28197

Checklist

• Did you add a function?
• Did you add the tests?
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