roachtest: increase Cleanup timeout for disk stall test

[RaduBerinde]

In this test, cleanup involves running
sudo apt-get install -y snapd, which can take a while. Increase the
timeout to 5 minutes.

Informs: #157978
Release note: None

[cockroach-teamcity]

This change is 

[jbowens]

@jbowens reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: complete! 1 of 0 LGTMs obtained (waiting on @sumeerbhola)

[RaduBerinde]

TFTR!

bors r+

[craig]

Build failed:

• local_roachtest

[RaduBerinde]

The self-hosted runner lost communication with the server

bors r+

[craig]

Build succeeded:

• local_roachtest_fips
• linux_amd64_fips_build
• local_roachtest
• docker_image_amd64
• linux_amd64_build
• acceptance
• examples_orms
• check_generated_code
• lint
• unit_tests

[blathers-crl]

Encountered an error creating backports. Some common things that can go wrong:

1. The backport branch might have already existed.
2. There was a merge conflict.
3. The backport branch contained merge commits.

You might need to create your backport manually using the backport tool.

---

💡 Consider backporting to the fork repo instead of the main repo. See instructions for more details.

error creating merge commit from 5a3c9dd to blathers/backport-release-24.3-158107: POST https://api.github.com/repos/cockroachdb/cockroach/merges: 409 Merge conflict []

you may need to manually resolve merge conflicts with the backport tool.

Backport to branch 24.3.x failed. See errors above.

---

💡 Consider backporting to the fork repo instead of the main repo. See instructions for more details.

error creating merge commit from 5a3c9dd to blathers/backport-release-25.2-158107: POST https://api.github.com/repos/cockroachdb/cockroach/merges: 409 Merge conflict []

you may need to manually resolve merge conflicts with the backport tool.

Backport to branch 25.2.x failed. See errors above.

---

💡 Consider backporting to the fork repo instead of the main repo. See instructions for more details.

💡 Consider backporting to the fork repo instead of the main repo. See instructions for more details.

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