roachtest: ssh_problem failed

roachtest.ssh_problem [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21348733?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21348733?buildTab=artifacts#/kv95/enc=false/nodes=3/cpu=32/mt-shared-process) on release-25.2.19-rc @ [7f2ea181bbd4f4d03894071b3de40359ca31cb21](https://github.com/cockroachdb/cockroach/commits/7f2ea181bbd4f4d03894071b3de40359ca31cb21):

```
test kv95/enc=false/nodes=3/cpu=32/mt-shared-process failed: (test_runner.go:840).func4: cluster.PutE: put "/go/src/github.com/cockroachdb/cockroach/bin/cockroach.linux-amd64" failed: TRANSIENT_ERROR(ssh_problem): ~ scp -r -C -o StrictHostKeyChecking=no -o ConnectTimeout=10 -i /home/roach/.ssh/id_rsa /go/src/github.com/cockroachdb/cockroach/bin/cockroach.linux-amd64 ubuntu@34.73.177.83:./cockroach
ssh: connect to host 34.73.177.83 port 22: Connection timed out
lost connection: exit status 1 [owner=test-eng]
```

Parameters:
- MetamorphicFilesystem=ext4
- MetamorphicVolumeType=local-ssd
- arch=amd64
- cloud=gce
- coverageBuild=false
- cpu=32
- diskCount=0
- encrypted=false
- fs=ext4
- localSSD=true
- 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-21348733/kv95-enc-false-nodes-3-cpu-32-mt-shared-process/-62135596800000/-62135596680000)

Same failure on other branches

- #168677 roachtest: ssh_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3.32-rc]
- #168571 roachtest: ssh_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.18-rc]
- #168570 roachtest: ssh_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.1.4-rc]
- #168566 roachtest: ssh_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.4.10-rc]
- #168456 roachtest: ssh_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.17-rc]
- #168455 roachtest: ssh_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.1.3-rc]
- #167394 roachtest: ssh_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3]

/cc @cockroachdb/test-eng

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

Jira issue: CRDB-63971