[Flaky CI]: Browser Unit Tests - test/utils/lazyLoadIntegration.test.ts > lazyLoadIntegration > it injects a script tag if integration is not yet loaded

### Flakiness Type

Other / Unknown

### Name of Job

Browser Unit Tests

### Name of Test

test/utils/lazyLoadIntegration.test.ts > lazyLoadIntegration > it injects a script tag if integration is not yet loaded

### Link to Test Run

https://github.com/getsentry/sentry-javascript/actions/runs/32882105614/job/97914506848

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_This issue was automatically created._

Start with test/utils/lazyLoadIntegration.test.ts and the Browser Unit Tests run linked in the issue. Run the named lazyLoadIntegration test repeatedly to reproduce the flakiness and inspect its failure output. Done means the test reliably passes in the Browser Unit Tests job without masking the behavior it verifies.

索引モデルが issue の本文から書いたものです。