feat: add lua universe package and stylua command to fmt check

Signed-off-by: teddylear <teddylear@protonmail.com>

pkg/universe.dagger.io/x/teddylear@protonmail.com/lua/test/data/hello/example.lua

@@ -0,0 +1,7 @@
+local function hello(offset)
+	local foo = {}
+	for i = 1, 10 do
+		table.insert(foo, i + offset)
+	end
+	return another_thing
+end