Add Fedora and Arch package recipes (#24)

* Package Ferese for Fedora and Arch releases

* Build release packages alongside workspace checks

* Include dependency licenses and software GPU test drivers

* Limit package checks to release PRs and fix Arch Cargo dependency

* Prepare Ferese 0.1.0-beta

* Release config locks before closing inherited file descriptions

* Install the lock PAM policy for native release checks

* Include xauth in distribution package test dependencies

* Regenerate Arch Git package metadata

* Run package checks with an explicit UTC timezone

* Remove unused bundled fonts and accept installed license receipts

* Format the system font test helper

* Load an installed font for headless text rendering checks

* Isolate package test runtimes and reap container child processes

docs/installation.md

@@ -3,6 +3,9 @@
 Ferese runs on Linux as its own Wayland session alongside your existing desktop.
 Launch it from a login manager, a command-based greeter or a local TTY.
 
+For Fedora and Arch packages, see [Packages and releases](packaging.md). The
+steps below build and install from source.
+
 ## Requirements
 
 For a full session, you’ll need a Wayland-capable graphics driver and a local user