roachtest: admission-control/multitenant-isolation/kv-tiny/noisy-neighbor failed

roachtest.admission-control/multitenant-isolation/kv-tiny/noisy-neighbor [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21377415?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21377415?buildTab=artifacts#/admission-control/multitenant-isolation/kv-tiny/noisy-neighbor) on master @ [3737b0e6cfe237edbfe53c5e61c0e1a99615d389](https://github.com/cockroachdb/cockroach/commits/3737b0e6cfe237edbfe53c5e61c0e1a99615d389):

Failed with:

```
(admission_control_multitenant_isolation.go:480).verifyCPUUtilization: workload did not saturate cluster: average CPU 68.57% < 70%
test artifacts and logs in: /artifacts/admission-control/multitenant-isolation/kv-tiny/noisy-neighbor/run_1
```
Cluster Node to Ip Mapping:
| Node | Public IP | Private IP |
| --- | --- | --- |
| teamcity-21377415-1780984839-14-n3cpu4-0001 | 34.24.255.35 | 10.142.1.231 |
| teamcity-21377415-1780984839-14-n3cpu4-0002 | 35.196.5.242 | 10.142.0.158 |
| teamcity-21377415-1780984839-14-n3cpu4-0003 | 34.139.159.213 | 10.142.0.219 |

Parameters:
- arch=amd64
- cloud=gce
- coverageBuild=false
- cpu=4
- diskCount=0
- encrypted=false
- fs=ext4
- localSSD=false
- 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-21377415/admission-control-multitenant-isolation-kv-tiny-noisy-neighbor/1780985090614/1780987640406)

See: [Datadog Logs](https://us5.datadoghq.com/logs?query=service%3Aroachtest+%40cluster%3Ateamcity-21377415-1780984839-14-n3cpu4&from_ts=1780985090614&to_ts=1780987640406&live=false&storage=flex_tier)

/cc @cockroachdb/admission-control

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

Jira issue: CRDB-64621