chore: Enable clang-tidy include cleaner (#6947)

src/test/app/DNS_test.cpp

@@ -1,11 +1,20 @@
-#include <test/jtx.h>
 
+#include <test/jtx/Env.h>
+
+#include <xrpld/app/misc/detail/Work.h>
 #include <xrpld/app/misc/detail/WorkSSL.h>
 
 #include <xrpl/basics/StringUtilities.h>
+#include <xrpl/beast/unit_test/suite.h>
+
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/system/detail/error_code.hpp>
 
 #include <condition_variable>
+#include <map>
 #include <memory>
+#include <mutex>
+#include <string>
 
 namespace xrpl {
 namespace test {