Retry the PATCH when linking a team to an external group

We saw an integration test fail with a 404 when trying to link the GH team to an AAD group. We've had alot of problems with apparant race conditions when creating teams that we've been playing whack a mole with. This is the latest.

https://github.com/github/gh-gei/actions/runs/4598087345/jobs/8121902159?pr=937#step:17:469

This operation - even though it's a write - should be safe to retry since it should be idempotent. Probably best to limit the retries to this specific error code (404).