[Bug fix] Sync status for caching output cache

[rainyfly]

Motivation

缓存输出 token 时，确认同步 token processor 和 resource manager 中关于请求的状态，当前请求尚未被抢占。

Modifications

Usage or Command

Accuracy Tests

Checklist

• [ ] Add at least a tag in the PR title.
  • Tag list: [[FDConfig],[APIServer],[Engine], [Scheduler], [PD Disaggregation], [Executor], [Graph Optimization], [Speculative Decoding], [RL], [Models], [Quantization], [Loader], [OP], [KVCache], [DataProcessor], [BugFix], [Docs], [CI], [Optimization], [Feature], [Benchmark], [Others], [XPU], [HPU], [GCU], [DCU], [Iluvatar], [Metax]]
  • You can add new tags based on the PR content, but the semantics must be clear.
• [ ] Format your code, run pre-commit before commit.
• [ ] Add unit tests. Please write the reason in this PR if no unit tests.
• [ ] Provide accuracy results.
• [ ] If the current PR is submitting to the release branch, make sure the PR has been submitted to the develop branch, then cherry-pick it to the release branch with the [Cherry-Pick] PR tag.

[paddle-bot[bot]]

Thanks for your contribution!

[codecov-commenter]

Codecov Report

:x: Patch coverage is 28.57143% with 10 lines in your changes missing coverage. Please review. :warning: Please upload report for BASE (develop@21fa2ba). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
fastdeploy/output/token_processor.py	20.00%	3 Missing and 1 partial :warning:
fastdeploy/engine/sched/resource_manager_v1.py	0.00%	2 Missing :warning:
fastdeploy/model_executor/pre_and_post_process.py	33.33%	1 Missing and 1 partial :warning:
fastdeploy/worker/gpu_model_runner.py	33.33%	1 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #5584   +/-   ##
==========================================
  Coverage           ?   62.60%           
==========================================
  Files              ?      329           
  Lines              ?    41710           
  Branches           ?     6371           
==========================================
  Hits               ?    26114           
  Misses             ?    13621           
  Partials           ?     1975           

Flag	Coverage Δ
GPU	62.60% <28.57%> (?)

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