Xcode 15 with iOS 17 and tvOS 17

[pyby]

Motivation and Context

Build the project with the latest version of Xcode: 15.0. It includes iOS 17 and tvOS 17.

Description

• Update CI configuration.
• Modernize demo project settings.

Checklist

• [x] The branch should be rebased onto the develop branch for whole tests with nighties.
• [x] The documentation has been updated (if relevant).
• [x] The demo has been updated (if relevant).
• [x] Issues are linked to the PR, if any.