fix: Adds missing migration files. (#1642)

### Summary

- Bumps serialization generator. v2.10.9 fixes an issue with nuget publishing where files were missing.
- Fixes camps missing serialization of their prisoner.
- Adds missing serialization migration files.

Projects/UOContent/Migrations/Server.Multis.BaseCamp.v1.json

@@ -0,0 +1,34 @@
+{
+  "version": 1,
+  "type": "Server.Multis.BaseCamp",
+  "properties": [
+    {
+      "name": "Items",
+      "type": "System.Collections.Generic.List\u003CServer.Item\u003E",
+      "rule": "ListMigrationRule",
+      "ruleArguments": [
+        "@Tidy",
+        "Server.Item",
+        "SerializableInterfaceMigrationRule"
+      ]
+    },
+    {
+      "name": "Mobiles",
+      "type": "System.Collections.Generic.List\u003CServer.Mobile\u003E",
+      "rule": "ListMigrationRule",
+      "ruleArguments": [
+        "@Tidy",
+        "Server.Mobile",
+        "SerializableInterfaceMigrationRule"
+      ]
+    },
+    {
+      "name": "DecayTime",
+      "type": "System.DateTime",
+      "rule": "PrimitiveTypeMigrationRule",
+      "ruleArguments": [
+        "DeltaTime"
+      ]
+    }
+  ]
+}