Address the issue where the post-processing effects of the new pipeline are unusable.

[GengineJS]

Greptile Summary

This pull request addresses issues with post-processing effects in the new rendering pipeline, focusing on improvements to descriptor set updates and render pass management.

• Modified updatePerPassUBO in cocos/rendering/custom/define.ts to simplify and enhance texture and sampler binding logic
• Significantly refactored cocos/rendering/custom/executor.ts to improve rendering pipeline execution, particularly for post-processing effects
• Updated render pass and queue management in executor.ts for increased efficiency and flexibility
• Enhanced scene processing logic in executor.ts to better support the new pipeline structure
• Improved overall robustness of the rendering system, addressing usability issues with post-processing effects

[github-actions[bot]]

Interface Check Report

This pull request does not change any public interfaces !

[star-e]

Will report error when enabling/disabling builtin-pipeline post processes. Do not merge into v3.8.4 currently.