Remove use of python setup.py develop/install

[antonwolfy]

A warning that python setup.py develop is deprecated and will no longer be supported at the end of October, 2025 has been ongoing for some time when using dpnp build driver scripts, and can be seen in the CI.

The PR proposes instead relying on pip for installing dpnp in scripts, and reworks the scripts to maintain use of scikit-build.
In the future, this will also simplify a transition to scikit-build-core.

This PR also introduces options

• --clean and --skip-editable to build_locally driver
• --clean and --skip-pytest to gen_coverage driver

Also it includes update of the documentation with new build instruction.

• Have you provided a meaningful PR description?
• Have you added a test, reproducer or referred to an issue with a reproducer?
• Have you tested your changes locally for CPU and GPU devices?
• Have you made sure that new changes do not introduce compiler warnings?
• Have you checked performance impact of proposed changes?
• Have you added documentation for your changes, if necessary?
• Have you added your changes to the changelog?

[github-actions]

View rendered docs @ https://intelpython.github.io/dpnp/pull/2716/index.html

[github-actions]

Array API standard conformance tests for dpnp=0.20.0dev1=py313h509198e_43 ran successfully.
Passed: 1229
Failed: 0
Skipped: 7