chore: add marshall benchmark (#353)

tests/benchmarks/test_marshall.py

@@ -0,0 +1,17 @@
+from dbus_fast import Message
+from pytest_codspeed import BenchmarkFixture
+
+message = Message(
+    destination="org.bluez",
+    path="/",
+    interface="org.freedesktop.DBus.ObjectManager",
+    member="GetManagedObjects",
+)
+
+
+def test_marshall_bluez_get_managed_objects_message(
+    benchmark: BenchmarkFixture,
+) -> None:
+    @benchmark
+    def marhsall_bluez_get_managed_objects_message():
+        message._marshall(False)