Fix compilation warnings

[antonwolfy]

This PR resolves compilation warnings:

warning: class template argument deduction for alias templates is a C++20 extension [-Wc++20-extensions]

As for now DPNP is building with C++17 standard, and Class Template Argument Deduction is available where only for a class template, but not for a type alias. What support was added in C++20 standard.

Since there are currently no plans to move to the C++20 standard, the code has been updated to conform to the C++17 standard.

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[github-actions]

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

[github-actions]

Array API standard conformance tests for dpnp=0.19.0dev1=py313h509198e_4 ran successfully.
Passed: 1227
Failed: 0
Skipped: 9

[coveralls]

coverage: 72.051% (-0.001%) from 72.052%
when pulling 815383a on resolve-compilation-warnings
into 0684c1f on master.