roachtest: cluster_creation failed

roachtest.cluster_creation [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/19520604?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/19520604?buildTab=artifacts#/kv0/enc=false/nodes=3/cpu=96) on release-24.3.12-rc @ [539424eb7082f9fc04d86a60bb961c9f74596be1](https://github.com/cockroachdb/cockroach/commits/539424eb7082f9fc04d86a60bb961c9f74596be1):

```
test kv0/enc=false/nodes=3/cpu=96 failed: (test_runner.go:853).func4: in provider: aws: failed to run: aws ec2 run-instances --associate-public-ip-address --count 1 --instance-type c6a.24xlarge --image-id ami-0e83be366243f524a --key-name teamcity-runner-VdbWaYSwCbtYdOgEloufK1UwyPE= --region us-east-2 --security-group-ids sg-04d72b57e29d671f1 --subnet-id subnet-0258dc9d1b6473d84 --tag-specifications ResourceType=instance,Tags=[{Key=usage,Value=roachtest},{Key=Created,Value=2025-04-24T05:56:49Z},{Key=Name,Value=teamcity-19520604-1745472689-22-n4cpu96-0001},{Key=Spot,Value=true},{Key=Roachprod,Value=true},{Key=Cluster,Value=teamcity-19520604-1745472689-22-n4cpu96},{Key=Lifetime,Value=12h0m0s},{Key=arch,Value=amd64}] ResourceType=volume,Tags=[{Key=usage,Value=roachtest},{Key=Created,Value=2025-04-24T05:56:49Z},{Key=Name,Value=teamcity-19520604-1745472689-22-n4cpu96-0001},{Key=Spot,Value=true},{Key=Roachprod,Value=true},{Key=Cluster,Value=teamcity-19520604-1745472689-22-n4cpu96},{Key=Lifetime,Value=12h0m0s},{Key=arch,Value=amd64}] --user-data file:///tmp/aws-startup-script3475183439 --iam-instance-profile Name=roachprod-testing --block-device-mapping file:///tmp/aws-block-device-mapping4253868877 --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): There is no Spot capacity available that matches your request.: exit status 254 [owner=test-eng]
```

Parameters:
- cloud=aws
- coverageBuild=false
- cpu=96
- 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

- #144454 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.1.17-rc]
- #144448 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3.11-rc]
- #144445 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.1.5-rc]
- #144214 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2]
- #143684 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-23.2.22-rc]
- #143407 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3]
- #143123 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.1.15-rc]
- #143042 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.1.3-rc]
- #143041 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3.9-rc]
- #142710 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.1.2-rc]

/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-50354