internal/rosa: fix up dependencies

These are no longer provided by the (incomplete) toybox implementations, so they need to be specified explicitly.

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

internal/rosa/x.go

@@ -9,6 +9,8 @@ func (t Toolchain) newXproto() pkg.Artifact {
 	)
 	return t.New("xproto-"+version, 0, []pkg.Artifact{
 		t.Load(Make),
+		t.Load(Gawk),
+		t.Load(Coreutils),
 		t.Load(PkgConfig),
 	}, nil, nil, `
 cd "$(mktemp -d)"
@@ -32,6 +34,8 @@ func (t Toolchain) newLibXau() pkg.Artifact {
 	)
 	return t.New("libXau-"+version, 0, []pkg.Artifact{
 		t.Load(Make),
+		t.Load(Gawk),
+		t.Load(Coreutils),
 		t.Load(PkgConfig),
 
 		t.Load(Xproto),