Replace np.empty_like(usm_ndarray_inst) with np.empty(shape, dtype=dt)

[oleksandr-pavlyk]

Corrected uses of np.empty_like(usm_ar) in test suite which error own due to recent change disallowing implicit data conversions.
These were subtle, albeit harmless, bugs.

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[github-actions]

Deleted rendered PR docs from intelpython.github.com/dpctl, latest should be updated shortly. 🤞

[github-actions]

Array API standard conformance tests for dpctl=0.19.0dev0=py310h93fe807_448 ran successfully.
Passed: 894
Failed: 2
Skipped: 118

[coveralls]

coverage: 87.683%. remained the same
when pulling 1feee2f on fix-numpy-1-26-recent-new-failures
into 6f02ec3 on master.