[MAINT] Update copyright to 2025

[ndgrigorian]

This PR updates the copyright range for 2025.

• 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?
• If this PR is a work in progress, are you opening the PR as a draft?

[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_398 ran successfully.
Passed: 894
Failed: 2
Skipped: 118

[github-actions]

Array API standard conformance tests for dpctl=0.19.0dev0=py310h93fe807_398 ran successfully.
Passed: 894
Failed: 2
Skipped: 118

[oleksandr-pavlyk]

There are few more places that require updating:

./dpctl/tests/_c_ext.c:// Copyright 2022-2024 Intel Corporation
./dpctl/apis/include/dpctl_capi.h:// Copyright 2020-2024 Intel Corporation
./dpctl/apis/include/dpctl_sycl_interface.h:// Copyright 2020-2024 Intel Corporation

[ndgrigorian]

There are few more places that require updating:

./dpctl/tests/_c_ext.c:// Copyright 2022-2024 Intel Corporation
./dpctl/apis/include/dpctl_capi.h:// Copyright 2020-2024 Intel Corporation
./dpctl/apis/include/dpctl_sycl_interface.h:// Copyright 2020-2024 Intel Corporation

Thanks for catching them, I've pushed the change for these files too

[github-actions]

Array API standard conformance tests for dpctl=0.19.0dev0=py310h93fe807_398 ran successfully.
Passed: 894
Failed: 2
Skipped: 118

[github-actions]

Array API standard conformance tests for dpctl=0.19.0dev0=py310h93fe807_409 ran successfully.
Passed: 894
Failed: 2
Skipped: 118