fix: add default value for query param

Author: ikesnowy

test/Cnblogs.Architecture.IntegrationTestProject/Program.cs

@@ -43,7 +43,7 @@
     enableHead: true);
 v1.MapQuery(
     "strings/{stringId:int}",
-    async (int stringId, [FromQuery] bool found)
+    async (int stringId, [FromQuery] bool found = true)
         => await Task.FromResult(new GetStringQuery(StringId: stringId, Found: found)));
 v1.MapQuery<ListStringsQuery>("strings");
 v1.MapCommand(