Mute expecting runtime warning raised in the test

[antonwolfy]

This PR follows up #2792 and marks one more RuntimeWarning warning as expected due to possible overflow.

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[vlad-perevezentsev]

LGTM
Thank you @antonwolfy

[github-actions]

View rendered docs @ https://intelpython.github.io/dpnp/index.html

[github-actions]

Array API standard conformance tests for dpnp=0.20.0dev4=py313h509198e_3 ran successfully.
Passed: 1354
Failed: 3
Skipped: 16

[coveralls]

coverage: 81.17%. remained the same
when pulling f250bd3 on mute-warning-in-the-tests
into 7fae3a6 on master.