roachtest: monitor_failure failed

roachtest.monitor_failure [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21370174?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21370174?buildTab=artifacts#/schemachange/during/tpcc) on release-25.2.12-rc @ [ca60d6346a81d99d640c89c7c1e9282002357319](https://github.com/cockroachdb/cockroach/commits/ca60d6346a81d99d640c89c7c1e9282002357319):

```
test schemachange/during/tpcc failed: (monitor.go:149).Wait: monitor failure: context canceled
EOF [owner=test-eng]
test artifacts and logs in: /artifacts/schemachange/during/tpcc/run_1
```

Parameters:
- arch=amd64
- cloud=gce
- coverageBuild=false
- cpu=16
- diskCount=0
- encrypted=false
- fs=ext4
- localSSD=true
- metamorphicLeases=default
- runtimeAssertionsBuild=false
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)

See: [Grafana](https://go.crdb.dev/roachtest-grafana/teamcity-21370174/schemachange-during-tpcc/1780481299436/1780490569934)

Same failure on other branches

- #171291 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.1.5-rc]
- #169795 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3.32-rc]
- #164923 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.15-rc]
- #158748 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.10-rc]
- #154428 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.4]
- #153156 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.3.2-rc]
- #153148 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.1.24-rc]
- #153136 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.6-rc]
- #151922 roachtest: monitor_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.3.1-rc]

/cc @cockroachdb/test-eng

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

Jira issue: CRDB-64499