Resolve potential OOM (Out-Of-Memory) issues in the Spine runtime for web platforms.

[bofeng-song]

Re: #
cocos/cocos-test-projects#916
https://forum.cocos.org/t/topic/166062
cocos/cocos-engine-external#485

Changelog

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Continuous Integration

This pull request:

• needs automatic test cases check.

  Manual trigger with @cocos-robot run test cases afterward.

• does not change any runtime related code or build configuration

  If any reviewer thinks the CI checks are needed, please uncheck this option, then close and reopen the issue.

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Compatibility Check

This pull request:

• changes public API, and have ensured backward compatibility with deprecated features.
• affects platform compatibility, e.g. system version, browser version, platform sdk version, platform toolchain, language version, hardware compatibility etc.
• affects file structure of the build package or build configuration which requires user project upgrade.
• introduces breaking changes, please list all changes, affected features and the scope of violation.

[dumganhar]

@cocos-robot run test cases

[github-actions]

Code Size Check Report

Wechat (WASM)	Before	After	Diff
2D Empty (legacy pipeline)	1006139 bytes	1006139 bytes	✅ 0 bytes
2D All (legacy pipeline)	2668665 bytes	2669478 bytes	⚠️ +813 bytes
2D All (new pipeline)	2756873 bytes	2757686 bytes	⚠️ +813 bytes
(2D + 3D) All	10010462 bytes	10011275 bytes	⚠️ +813 bytes

Web (WASM + ASMJS)	Before	After	Diff
(2D + 3D) All	16924878 bytes	16927398 bytes	⚠️ +2520 bytes

Interface Check Report

! WARNING this pull request has changed these public interfaces:

@@ -53368,9 +53368,8 @@
             protected _animationQueue: __private._cocos_spine_skeleton__AnimationItem[];
             protected _headAniInfo: __private._cocos_spine_skeleton__AnimationItem | null;
             protected _isAniComplete: boolean;
             protected _playTimes: number;
-            protected _needUpdateSkeltonData: boolean;
             protected _listener: __private._cocos_spine_track_entry_listeners__TrackEntryListeners | null;
             _vLength: number;
             _vBuffer: Uint8Array | null;
             _iLength: number;

[github-actions]

@bofeng-song, Please check the result of run test cases:

• Test Platform: PR-Test
• Editor Version: v3.8.7
• Task Result: PASS
• Task URL: https://cctest.cocos.org/#/reportview/PR-TEST/edb2e329-494a-42e4-9a18-a1f7817664ea/-1
• GitHub Action: https://github.com/cocos/cocos-engine/actions/runs/14512053636

Task Details

[github-actions]

@bofeng-song, Please check the result of run test cases:

• Test Platform: PR-Test
• Editor Version: v3.8.7
• Task Result: PASS
• Task URL: https://cctest.cocos.org/#/reportview/PR-TEST/7b396013-e338-4225-b1b7-fa48b6546a9e/-1
• GitHub Action: https://github.com/cocos/cocos-engine/actions/runs/14512053636

Task Details