Fix the bug that ParticleSystem2D re-active causes particle could not be shown.

[dumganhar]

Re: This issue is caused by the Pull Request #18052
I have described the reason in that PR.

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.

[github-actions]

⚠️ Package size ⤴ 182 bytes, old: 5193082, new: 5193264

Interface Check Report

! WARNING this pull request has changed these public interfaces:

@@ -46230,8 +46230,9 @@
         onDestroy(): void;
         onFocusInEditor(): void;
         onLostFocusInEditor(): void;
         __preload(): void;
+        destroyRenderData(): void;
         protected _flushAssembler(): void;
         protected lateUpdate(dt: number): void;
         /**
          * @en Add a particle to the emitter.
@@ -68240,9 +68241,9 @@
             particles: _cocos_particle_2d_particle_simulator_2d__Particle[];
             active: boolean;
             uvFilled: number;
             finished: boolean;
-            renderData: MeshRenderData;
+            renderData: MeshRenderData | null;
             constructor(system: any);
             stop(): void;
             reset(): void;
             emitParticle(pos: any): void;