build(deps): 升级 network 至 2.6.9

Author: AlianBlank

Packages/manifest.json

@@ -21,7 +21,7 @@
     "com.gameframex.unity.json.simplejson": "1.1.2",
     "com.gameframex.unity.localization": "2.3.1",
     "com.gameframex.unity.mono": "1.1.3",
-    "com.gameframex.unity.network": "2.6.8",
+    "com.gameframex.unity.network": "2.6.9",
     "com.gameframex.unity.operationclipboard": "1.2.2",
     "com.gameframex.unity.procedure": "1.2.3",
     "com.gameframex.unity.psygames.unitywebsocket": "2.9.2",