ci: fix archlinux builds
ci: fix archlinux builds

The "xorg-server-xwayland" package has become "xorg-xwayland" in Arch.
Our egl requirement was previously satisfied by xorg-server-xwayland's
dependency on libgl, which "xorg-xwayland" does not have. So add the
libegl dependency as well.

1ace/sway,1ace/sway,1ace/sway