roachtest: cluster_creation failed

roachtest.cluster_creation [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/20786077?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/20786077?buildTab=artifacts#/admission-control/disk-bandwidth-limiter) on release-25.4.2-rc @ [ff51b7da52b4298ebd4282adccbb5f72f87ffb23](https://github.com/cockroachdb/cockroach/commits/ff51b7da52b4298ebd4282adccbb5f72f87ffb23):

```
test admission-control/disk-bandwidth-limiter failed: (test_runner.go:873).func4: in provider: aws: failed to run: aws ec2 run-instances --associate-public-ip-address --count 1 --instance-type m7gd.2xlarge --image-id ami-05983a09f7dc1c18f --key-name teamcity-runner-2Nq1nwsqgeJeo3MhEMMxdV0SBsA= --region us-east-2 --security-group-ids sg-04d72b57e29d671f1 --subnet-id subnet-0258dc9d1b6473d84 --tag-specifications ResourceType=instance,Tags=[{Key=usage,Value=roachtest},{Key=roachtest-branch,Value=release-25-4-2-rc},{Key=lifetime,Value=12h0m0s},{Key=arch,Value=arm64},{Key=created,Value=2025-11-27T07:04:35Z},{Key=Name,Value=teamcity-20786077-1764226529-10-n2cpu8-0001},{Key=Cluster,Value=teamcity-20786077-1764226529-10-n2cpu8},{Key=spot,Value=true},{Key=roachprod,Value=true},{Key=cluster,Value=teamcity-20786077-1764226529-10-n2cpu8}] ResourceType=volume,Tags=[{Key=usage,Value=roachtest},{Key=roachtest-branch,Value=release-25-4-2-rc},{Key=lifetime,Value=12h0m0s},{Key=arch,Value=arm64},{Key=created,Value=2025-11-27T07:04:35Z},{Key=Name,Value=teamcity-20786077-1764226529-10-n2cpu8-0001},{Key=Cluster,Value=teamcity-20786077-1764226529-10-n2cpu8},{Key=spot,Value=true},{Key=roachprod,Value=true},{Key=cluster,Value=teamcity-20786077-1764226529-10-n2cpu8}] --user-data file:///tmp/aws-startup-script2371114278 --iam-instance-profile Name=roachprod-testing --block-device-mapping file:///tmp/aws-block-device-mapping2618400423 --instance-market-options MarketType=spot,SpotOptions={SpotInstanceType=one-time,InstanceInterruptionBehavior=terminate} --output json: stderr:
An error occurred (InsufficientInstanceCapacity) when calling the RunInstances operation (reached max retries: 2): We currently do not have sufficient m7gd.2xlarge capacity in the Availability Zone you requested (us-east-2a). Our system will be working on provisioning additional capacity. You can currently get m7gd.2xlarge capacity by not specifying an Availability Zone in your request or choosing us-east-2b, us-east-2c.: exit status 254 [owner=test-eng]
```

Parameters:
- cloud=aws
- coverageBuild=false
- cpu=8
- 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

- #158429 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.10-rc]
- #158428 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.3.6-rc]
- #158427 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3.24-rc]
- #158327 roachtest: cluster_creation failed [O-roachtest O-robot O-rsg T-testeng X-infra-flake branch-release-25.3]
- #158325 roachtest: cluster_creation failed [O-roachtest O-robot O-rsg T-testeng X-infra-flake branch-release-25.3]
- #158127 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3]
- #158126 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #158125 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #158124 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #158123 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.4]

/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-57290