Resolve pybind11 CMake message

[ndgrigorian]

previously part of defunct PR #2157

the message

Using compatibility mode for Python, set PYBIND11_FINDPYTHON to NEW/OLD to silence this message

is silenced when find_package(Python REQUIRED COMPONENTS Development.Module) is added to CMake before fetching pybind11, as Python_FOUND will be set

• 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?

[ndgrigorian]

@sycloid
pinging you as well since this was previously part of your PR, thank you for the addition :)

[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=0.21.0rc0=py310h93fe807_6 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

[coveralls]

coverage: 85.262%. remained the same
when pulling 0e46b4b on resolve-cmake-warning-module-development
into d16d31b on master.

[ndgrigorian]

@antonwolfy @vlad-perevezentsev
ping

[antonwolfy]

The message is gone now. LGTM