FIx flaky e2e test where fdbcli exits with exit code 2

[johscheuer]

What happened?

See: https://github.com/FoundationDB/fdb-kubernetes-operator/pull/1994#issuecomment-2074090975

What did you expect to happen?

The test should pass or retry in case of an error.

How can we reproduce it (as minimally and precisely as possible)?

Not sure, but we see that error a few times.

Anything else we need to know?

No response

FDB Kubernetes operator

$ kubectl fdb version
# paste output here

Kubernetes version

$ kubectl version
# paste output here

Cloud provider