v4.6.0
Follow main's behavior by falling back when Xvfb is unavailable and keeping the bundled CTest driver rooted at the checked-out project.
Adapted from changes originally introduced through 5176df6 ("Create and recognize standalone Holoscan Modules (#225)", 2026-08-24).
Signed-off-by: Wenqi Li <wenqil@nvidia.com>
Co-authored-by: Codex <noreply@openai.com>