devroot-enter does not provide correct permission on /home/user

Background

While executing the manual test case https://qa.apertis.org/testcases/v2026pre/devroot-manual-arm64.html

dpkg-deb: error: unable to create '../libdlt-dev_2.18.8-6+apertis4_arm64.deb': Permission denied

This caused by the fact that /home/user is owned by root instead of user, which is a bind mount of /home/user done by devroot-enter

Reproducibility

How often the issue is hit when repeating the steps to reproduce and changing nothing?

Put the ✅ in the most appropriate entry:

1. ✅ always
2. often, but not always
3. rarely

Impact of bug

The user needs to manually change the permission to make the test pass.

Outcomes

TBD

Management data

This section is for management only, it should be the last one in the description.

/cc @em @raju.balasubramanian-ext @sudarshan.chikkapuraputtalingaiah-ext @wlozano

Phabricator link: https://phabricator.apertis.org/T11216