roachtest: cluster_creation failed

roachtest.cluster_creation [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/19780250?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/19780250?buildTab=artifacts#/costfuzz/rand-multi-region) on release-25.2 @ [cfe971ca2dbac85aed9e65577feab2c87af2bc1d](https://github.com/cockroachdb/cockroach/commits/cfe971ca2dbac85aed9e65577feab2c87af2bc1d):

```
test costfuzz/rand-multi-region failed: (test_runner.go:864).func4: in provider: gce: T2A instances are not supported outside of [asia-southeast1-b,asia-southeast1-c,europe-west4-a,europe-west4-b,europe-west4-c,us-central1-a,us-central1-b,us-central1-f] [owner=test-eng]
```

Parameters:
- cloud=gce
- 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)

Same failure on other branches

- #147280 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.1-rc]
- #147279 roachtest: cluster_creation failed [O-roachtest O-robot O-rsg T-testeng X-infra-flake branch-master]
- #147278 roachtest: cluster_creation failed [O-roachtest O-robot O-rsg T-testeng X-infra-flake branch-master]
- #147277 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.1-rc]
- #147274 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.0-rc]
- #147205 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #147204 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #147203 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #147202 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #147201 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]

/cc @cockroachdb/test-eng

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*cluster_creation.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Jira issue: CRDB-50977