Update mnn to 3.3.0 (#8557)

packages/m/mnn/xmake.lua

@@ -6,6 +6,7 @@ package("mnn")
     add_urls("https://github.com/alibaba/MNN/archive/refs/tags/$(version).zip",
              "https://github.com/alibaba/MNN.git")
 
+    add_versions("3.3.0", "08424890d610b01a62df3f9dfa654cd37dd39bf921521639a1c233cc062c58c1")
     add_versions("3.2.4", "46fd6179e5817bcb2e523b958d18674da0acaa6cc30c937b834385b3ab8bff8a")
     add_versions("3.1.1", "d42b975e2712aa269deb91156572bdc88091c9e6b387faa50f8b5428278e0c51")
     add_versions("3.0.5", "23179be245aefe2e1546e94ad6312fde6fdd14c669ff5123ee5a5a9ef14542ef")