[Flaky CI]: Cloudflare Integration Tests - suites/tracing/propagation/worker-worker-do-rpc/test.ts > propagates trace from worker to worker to durable object (3 levels deep)

### Flakiness Type

Other / Unknown

### Name of Job

Cloudflare Integration Tests

### Name of Test

suites/tracing/propagation/worker-worker-do-rpc/test.ts > propagates trace from worker to worker to durable object (3 levels deep)

### Link to Test Run

https://github.com/getsentry/sentry-javascript/actions/runs/29527985461/job/87722717326

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_This issue was automatically created._

Start with suites/tracing/propagation/worker-worker-do-rpc/test.ts and the linked Cloudflare Integration Tests run to reproduce the three-level worker-to-Durable Object trace propagation failure. Trace the test's execution across the workers and Durable Object, then verify that the test passes reliably without intermittent failures.

索引モデルが issue の本文から書いたものです。