Allow Python scalars as the search values in dpt.searchsorted

[ndgrigorian]

This PR proposes permitting the search values of dpt.searchsorted to be Python scalars, a change coming to the 2026 array API spec

Resolves #2224

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[github-actions]

View rendered docs @ https://intelpython.github.io/dpctl/pulls/2225/index.html

[github-actions]

Array API standard conformance tests for dpctl=0.22.0dev0=py310h93fe807_104 ran successfully.
Passed: 1114
Failed: 44
Skipped: 82

[github-actions]

Array API standard conformance tests for dpctl=0.22.0dev0=py310h93fe807_104 ran successfully.
Passed: 1115
Failed: 43
Skipped: 82

[github-actions]

Array API standard conformance tests for dpctl=0.22.0dev0=py310h93fe807_105 ran successfully.
Passed: 1115
Failed: 43
Skipped: 82

[coveralls]

coverage: 86.249% (+0.004%) from 86.245%
when pulling b7c56e1 on allow-scalars-searchsorted-search-values
into 4c57ee7 on master.

[github-actions]

Array API standard conformance tests for dpctl=0.22.0dev0=py310h93fe807_106 ran successfully.
Passed: 1115
Failed: 43
Skipped: 82

[github-actions]

Array API standard conformance tests for dpctl=0.22.0dev0=py310h93fe807_106 ran successfully.
Passed: 1114
Failed: 44
Skipped: 82

[antonwolfy]

Would it make sense to parametrize py_zeros with below values instead of iterating over the loop for sc in py_zeros?