Update nghttp3 to v1.8.0 (#6531)

packages/n/nghttp3/xmake.lua

@@ -6,6 +6,7 @@ package("nghttp3")
     add_urls("https://github.com/ngtcp2/nghttp3/archive/refs/tags/$(version).tar.gz",
              "https://github.com/ngtcp2/nghttp3.git", {submodules = false})
 
+    add_versions("v1.8.0", "d2cac7cd17966c915f87fa6b823963db4b555397e43c69d16d289765af7ab442")
     add_versions("v1.7.0", "2e6c5599995939a96b759e9f8987c69c0872ed1c219f57730685a93c1c36c9ef")
     add_versions("v1.6.0", "7062b50ed7118566fc39cf9629e44de7582e77b43611f7e10d3ab192c91acb72")
     add_versions("v1.5.0", "8b4f47164fab6f9c6c1e77a61942d57e26e135731c9876ba6acf973f54cf78fe")