GH-45482: [CI][Python] Don't use Ubuntu 20.04 for wheel test

[kou]

Rationale for this change

Ubuntu 20.04 will reach EOL on 2025-05.

What changes are included in this PR?

Remove a wheel test that uses Ubuntu 20.04.

Are these changes tested?

Yes.

Are there any user-facing changes?

No.

• GitHub Issue: [CI][Python] Don't use Ubuntu 20.04 for wheel test #45482

[github-actions]

⚠️ GitHub issue #45482 has been automatically assigned in GitHub to PR creator.

[kou]

@github-actions crossbow submit wheel-manylinux-*

[github-actions]

Revision: 68bce83

Submitted crossbow builds: ursacomputing/crossbow @ actions-040f1597db

Task	Status
wheel-manylinux-2-28-cp310-cp310-amd64
wheel-manylinux-2-28-cp310-cp310-arm64
wheel-manylinux-2-28-cp311-cp311-amd64
wheel-manylinux-2-28-cp311-cp311-arm64
wheel-manylinux-2-28-cp312-cp312-amd64
wheel-manylinux-2-28-cp312-cp312-arm64
wheel-manylinux-2-28-cp313-cp313-amd64
wheel-manylinux-2-28-cp313-cp313-arm64
wheel-manylinux-2-28-cp313-cp313t-amd64
wheel-manylinux-2-28-cp313-cp313t-arm64
wheel-manylinux-2-28-cp39-cp39-amd64
wheel-manylinux-2-28-cp39-cp39-arm64
wheel-manylinux-2014-cp310-cp310-amd64
wheel-manylinux-2014-cp310-cp310-arm64
wheel-manylinux-2014-cp311-cp311-amd64
wheel-manylinux-2014-cp311-cp311-arm64
wheel-manylinux-2014-cp312-cp312-amd64
wheel-manylinux-2014-cp312-cp312-arm64
wheel-manylinux-2014-cp313-cp313-amd64
wheel-manylinux-2014-cp313-cp313-arm64
wheel-manylinux-2014-cp313-cp313t-amd64
wheel-manylinux-2014-cp313-cp313t-arm64
wheel-manylinux-2014-cp39-cp39-amd64
wheel-manylinux-2014-cp39-cp39-arm64

[raulcd]

Thanks @kou

[conbench-apache-arrow]

After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit c8a7def.

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about 1 possible false positive for unstable benchmarks that are known to sometimes produce them.