bgfx: update to 8889

[rempas]

• Before adding new features and new modules, please go to issues to submit the relevant feature description first.
• Write good commit messages and use the same coding conventions as the rest of the project.
• Please commit code to dev branch and we will merge into master branch in feature
• Ensure your edited codes with four spaces instead of TAB.

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• 增加新特性和新模块之前，请先到issues提交相关特性说明，经过讨论评估确认后，再进行相应的代码提交，避免做无用工作。
• 编写友好可读的提交信息，并使用与工程代码相同的代码规范，代码请用4个空格字符代替tab缩进。
• 请提交代码到dev分支，如果通过，我们会在特定时间合并到master分支上。
• 为了规范化提交日志的格式，commit消息，不要用中文，请用英文描述。

[gemini-code-assist]

Code Review

This pull request adds version 8889 to the bgfx package and removes version 7816. Feedback identifies orphaned resource entries for the removed version that should be cleaned up and suggests maintaining a consistent sort order for versions and resources to improve readability.

[gemini-code-assist]

Version 7816 has been removed from the add_versions list, but its corresponding add_resources entries for bx and bimg (lines 15 and 21 in the updated file) are still present. These should be removed to keep the package definition clean and avoid maintaining unreachable resource configurations.

[gemini-code-assist]

The version list is now inconsistently ordered (8889 followed by 8203, 8674, 8752). It is recommended to maintain a consistent sort order (e.g., descending) for both add_versions and add_resources blocks to improve maintainability and readability.