roachtest: cluster_creation failed

roachtest.cluster_creation [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyIbmBazel/20746242?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyIbmBazel/20746242?buildTab=artifacts#/replicate/rebalance/3to5) on release-25.3 @ [d596aa63eb1d22e88a5553ba6b333e8ad4f61ea5](https://github.com/cockroachdb/cockroach/commits/d596aa63eb1d22e88a5553ba6b333e8ad4f61ea5):

```
test replicate/rebalance/3to5 failed: (test_runner.go:850).func4: in provider: ibm: failed to create instance teamcity-20746242-1763440782-437-n6cpu4-0001 in region br-sao: instance teamcity-20746242-1763440782-437-n6cpu4-0001 didn't reach stable state in 2m30s; [instance state: starting|network attached: false] [owner=test-eng]
```

Parameters:
- cloud=ibm
- coverageBuild=false
- cpu=4
- runtimeAssertionsBuild=false
- ssd=0
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

/cc @cockroachdb/test-eng

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Jira issue: CRDB-57042