Flaky test: test_valid_slugs

[devinfra-flakiness]

Flaky Test Detected

Test: tests/sentry/core/endpoints/test_organization_index.py::OrganizationsCreateTest::test_valid_slugs

Statistics over the last 30 days:
* Runs Recorded: 715
* Flakes Failed: 3 (0.41958%)
* Flakes Retried: 18 (2.517483%)

Example Flakes:

• https://github.com/getsentry/sentry/actions/runs/19710735880/job/56470364739
• https://github.com/getsentry/sentry/actions/runs/19707645958/job/56459358162
• https://github.com/getsentry/sentry/actions/runs/19680357022/job/56372531145
• https://github.com/getsentry/sentry/actions/runs/19712061574/job/56475076302
• https://github.com/getsentry/sentry/actions/runs/19709827224/job/56467130607

This flaky test needs to be addressed. Please choose one:

1. Fix the flakiness. Easier said than done, I know.
2. Delete the test, if its value is lower than its costs. Only the test
   owner can decide this.
3. Reassign this issue.
   • If there's a better owner for this task, please consider updating
     CODEOWNERS to help the system work better in future.
   • If this flakiness is caused by a flaw in the test process itself, then
     team-devinfra may be the best owner.

If this issue has no movement for two weeks, you may see a PR proposing to
delete this flaky test.

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See also:
Flaky Test Policy & Responsibilities

[linear]

ENG-5976