Update openal-soft to 1.25.2

[halx99]

Describe your changes

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• Add Copyright if it missed:
  - "Copyright (c) 2019-present Axmol Engine contributors (see AUTHORS.md)."

• I have performed a self-review of my code.

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  • I have checked readme and add important infos to this PR.
  • I have added/adapted some tests too.

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Axmol 3.x ------------------------------------------------------------

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• Check the '#include "axmol.h"' and replace it with the needed headers.

[gemini-code-assist]

Code Review

This pull request updates OpenAL Soft to version 1.25.2, introduces support for C++20 modules, adds an SDL3 backend, and enhances SIMD support (NEON/SSE). It also includes significant refactoring for improved type safety and performance, such as the introduction of strict numeric types and non-blocking attributes. The reviewer identified a critical preprocessor error in 3rdparty/openal/alc/export_list.h regarding dangling #else directives, which requires immediate attention.