release-26.2.7-rc: roachtest: apt_problem failed

roachtest.apt_problem [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyGcePrivateBazel/21508816?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyGcePrivateBazel/21508816?buildTab=artifacts#/psycopg) on release-26.2.7-rc @ [6f643133d9a96ff138ee71d0f9a151a1a8595fba](https://github.com/cockroachdb/cockroach/commits/6f643133d9a96ff138ee71d0f9a151a1a8595fba):

Failed with:

```
test psycopg failed: (psycopg.go:84).func1: all attempts failed for install dependencies: full command output in run_093908.624687930_n1_sudo-aptget-qq-insta.log: error persisted after 3 attempts: TRANSIENT_ERROR(apt_problem): exit status 100
test artifacts and logs in: /artifacts/psycopg/cpu_arch=fips/run_1
```
Cluster Node to Ip Mapping:
| Node | Public IP | Private IP |
| --- | --- | --- |
| teamcity-21508816-1789016925-113-n1cpu4-0001 | | 10.91.97.190 |

Parameters:
- arch=fips
- cloud=gce
- coverageBuild=false
- cpu=4
- diskCount=0
- encrypted=false
- fs=ext4
- localSSD=true
- metamorphicLeases=leader
- metamorphicWriteBuffering=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-21508816/psycopg/1789030923538/1789033337159)

Same failure on other branches

- #174851 basalt-26.3: roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake basalt-green branch-basalt-26.3]
- #174691 release-26.3.2-rc: roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.3.2-rc]
- #174466 roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #174341 basalt-26.3: roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake basalt-red branch-basalt-26.3]
- #173764 roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.4.15-rc]
- #173585 basalt-26.3: roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-basalt-26.3]
- #173563 release-26.2.6-rc: roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.2.6-rc]
- #173550 roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.23-rc]
- #173460 release-26.3.1-rc: roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.3.1-rc]
- #172603 roachtest: apt_problem failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.1.8-rc]

/cc @cockroachlabs/test-eng

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*apt_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-68145

Start with pkg/cmd/roachtest/README.md and the psycopg.go:84 failure cited in the report. Inspect run_093908.624687930_n1_sudo-aptget-qq-insta.log and the /artifacts/psycopg/cpu_arch=fips output, then compare the linked same-failure issues. Done means identifying the apt_problem cause and verifying a fix for the recurring roachtest failure.

Written by the indexing model from the issue text.