[Flaky CI]: Cloudflare Integration Tests - suites/durableobject-scope/test.ts > a nested direct call within one invocation shares the same isolation scope

### Flakiness Type

Other / Unknown

### Name of Job

Cloudflare Integration Tests

### Name of Test

suites/durableobject-scope/test.ts > a nested direct call within one invocation shares the same isolation scope

### Link to Test Run

https://github.com/getsentry/sentry-javascript/actions/runs/34830011641/job/103931481034

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_This issue was automatically created._

Start with suites/durableobject-scope/test.ts and the linked Cloudflare Integration Tests run, focusing on the nested direct call within one invocation. Reproduce the reported flakiness and determine the conditions under which isolation scopes differ; done means the test consistently passes without losing the intended isolation behavior.

索引モデルが issue の本文から書いたものです。