Backport gh-2280

[ndgrigorian]

This PR backports the 0.22.0 changelog to the master branch, in preparation of starting a new release cycle

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• Have you tested your changes locally for CPU and GPU devices?
• Have you made sure that new changes do not introduce compiler warnings?
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• Have you added documentation for your changes, if necessary?
• Have you added your changes to the changelog?
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[github-actions]

View rendered docs @ https://intelpython.github.io/dpctl/pulls/2283/index.html

[coveralls]

coverage: 77.338%. remained the same — backport-0.22.0-changelog into master