feat: improve workspaceService initialize speed

[life2015]

Types

把工作空间连接过程中对workspace uri的watch优化成异步操作。
进而优化工作空间连接速度。

• 🚀 Performance Improvements

Background or solution

通过对工作空间连接过程的耗时分析与打点，发现在Storage初始化过程中会依赖workspace-service.ready，而workspace.ready需要等待watch完成。
watch的耗时大部分情况下需要300ms左右，但是在容器不稳定的情况下可能需要4s甚至更多，而且watch本身不应该阻塞工作空间的启动，因此做了异步处理。会优化极端情况下的工作空间连接速度。

附件：某些极端情况下的watch耗时

Changelog

• improve workspaceService initialize speed

[erha19]

@life2015 这里标题和 Changelog 是不是可以修改成 “improve workspaceService initialize performance”

[codecov]

Codecov Report

Base: 57.60% // Head: 57.59% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (532335c) compared to base (dd88924).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1824      +/-   ##
==========================================
- Coverage   57.60%   57.59%   -0.01%     
==========================================
  Files        1285     1285              
  Lines       80211    80212       +1     
  Branches    16806    16806              
==========================================
- Hits        46203    46197       -6     
- Misses      30933    30939       +6     
- Partials     3075     3076       +1     

Flag	Coverage Δ
jsdom	52.34% <100.00%> (-0.01%)	⬇️
node	15.90% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ackages/workspace/src/browser/workspace-service.ts	72.23% <100.00%> (+0.06%)	⬆️
packages/utils/src/buffer.ts	30.81% <0.00%> (-4.07%)	⬇️

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