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

pkg/universe.dagger.io/x/teddylear@protonmail.com/lua/test/fmtCheck.cue

@@ -0,0 +1,19 @@
+package lua
+
+import (
+	"dagger.io/dagger"
+	"universe.dagger.io/x/teddylear@protonmail.com/lua"
+)
+
+dagger.#Plan & {
+	client: filesystem: "./data/hello": read: contents: dagger.#FS
+
+	actions: test: {
+		simple: {
+			fmtCheck: lua.#StyluaCheck & {
+				source: client.filesystem."./data/hello".read.contents
+			}
+		}
+	}
+}
+

pkg/universe.dagger.io/x/teddylear@protonmail.com/lua/test/test.bats

@@ -0,0 +1,9 @@
+setup() {
+    load '../../../../bats_helpers'
+
+    common_setup
+}
+
+@test "lua" {
+    dagger "do" -p ./fmtCheck.cue test
+}