feat: add chown (linux only)

[cdrage]

feat: add chown (linux only)

What does this PR do?

• Adds chown to the advanced settings page for build
• Only applicable to Linux (see: https://github.com/osbuild/bootc-image-builder/issues/576)

Screenshot / video of UI

What issues does this PR fix or reference?

Closes https://github.com/containers/podman-desktop-extension-bootc/issues/472

How to test this PR?

1. Be on Linux
2. Build an image
3. See that it is chown (ex. ls -l /outputdir)

Signed-off-by: Charlie Drage charlie@charliedrage.com

[cdrage]

FYI based on https://github.com/containers/podman-desktop-extension-bootc/pull/684 since it requires certain Linux features to be in for this to work.

[cdrage]

~Update: Fixing a test, but otherwise ready for review 👍~ Fixed!

[cdrage]

@deboer-tim added chown detection / fill in with a new commit