Playwright's --with-deps flag only supports apt-based dependency
installation. The install script previously ran it on all non-Arch
systems, failing silently on Gentoo, Fedora, openSUSE, and others.
- Restrict --with-deps to known apt-based distributions
- Add explicit guidance for RPM-based (dnf) and zypper-based systems
- Show visible warnings instead of suppressing failures with || true
- Correct misleading comment that claimed dnf/zypper support
Fixes#6865
2b0912ab18