roachtest: stage_failure failed

roachtest.stage_failure [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/19645672?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/19645672?buildTab=artifacts#/rebalance/by-load/replicas/mixed-version) on release-24.3 @ [dd6ded593f157d28e104f7f5d7513145f099e625](https://github.com/cockroachdb/cockroach/commits/dd6ded593f157d28e104f7f5d7513145f099e625):

```
test rebalance/by-load/replicas/mixed-version failed: (mixedversion.go:791).Run: mixed-version test failure while running step 1 (start cluster at version "v24.1.18"): cluster.Stage: output:
1: COMMAND_PROBLEM: exit status 2
curl: (56) OpenSSL SSL_read: Connection reset by peer, errno 104

gzip: stdin: unexpected end of file
tar: Unexpected EOF in archive
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now

2:
3:
4:
5:
6: : TRANSIENT_ERROR(stage_failure): COMMAND_PROBLEM: exit status 2 [owner=test-eng]
test artifacts and logs in: /artifacts/rebalance/by-load/replicas/mixed-version/run_1
```

Parameters:
- arch=amd64
- cloud=gce
- coverageBuild=false
- cpu=4
- encrypted=false
- fs=ext4
- localSSD=true
- mvtDeploymentMode=system-only
- mvtVersions=v24.1.18 → release-24.3
- 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)

See: [Grafana](https://go.crdb.dev/roachtest-grafana/teamcity-19645672/rebalance-by-load-replicas-mixed-version/1746700222027/1746700367751)

Same failure on other branches

- #146037 roachtest: stage_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.0-rc]
- #140132 roachtest: stage_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.1]
- #123276 roachtest: stage_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-23.2]
- #123193 roachtest: stage_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #123047 roachtest: stage_failure failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.1]

/cc @cockroachdb/test-eng

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Jira issue: CRDB-50492