Comment 2 for bug 2029352

This is fixed by upstream commit [1], which is included in v251 and newer. The reason this is not needed in Jammy (v249) is because we already have a patch [2] that causes this test case to be skipped on arhmf.

[1] https://github.com/systemd/systemd/commit/646cba5c4208c28c56dbe52d676ab1a176c69b7f
[2] https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/tree/debian/patches/debian/UBUNTU-src-test-test-execute.c-Skip-parts-of-test-execute-in-con.patch?h=ubuntu-jammy