Update the UWP (WinRT) documentation to reflect the removal of AC3 decoder

[YexuanXiao]

Type of issue

Outdated article

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According to the statement released in May this year, starting with Windows 11 version 24H2, AC3 decoding will no longer be supported. This issue has been confirmed on my computer, so the UWP documentation needs to be updated to match the current situation.

[drewbatgit]

@YexuanXiao Thank you for calling this out. The page has been updated.