[MAINT] Update Windows version used by GitHub CI

[ndgrigorian]

This PR proposes changing the version of Windows used by the GitHub CI, since Windows 2019 image will soon no longer be supported

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[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=0.20.0rc2=py310h93fe807_2 ran successfully.
Passed: 1115
Failed: 6
Skipped: 119

[github-actions]

Array API standard conformance tests for dpctl=0.20.0rc2=py310h93fe807_5 ran successfully.
Passed: 1116
Failed: 5
Skipped: 119

[antonwolfy]

LGTM! Thank you @ndgrigorian