internal/rosa: pass stage alongside state

This cleans up many function signatures.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/gtk.go

@@ -5,12 +5,12 @@ import (
 	"hakurei.app/internal/pkg"
 )
 
-func (t Toolchain) newGLib(s *S) (pkg.Artifact, string) {
+func (t Toolchain) newGLib() (pkg.Artifact, string) {
 	const (
 		version  = "2.88.1"
 		checksum = "Rkszn6W4RHjyspyqfXdVAVawdwDJCuS0Zu0f7qot7tbJhnw2fUDoUUJB40m-1MCX"
 	)
-	return s.NewPackage(t, "glib", version, s.newTagRemote(t,
+	return t.NewPackage("glib", version, t.newTagRemote(
 		"https://gitlab.gnome.org/GNOME/glib.git",
 		version, checksum,
 	), &PackageAttr{