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

src/test/rpc/Handler_test.cpp

@@ -1,13 +1,20 @@
-#include <test/jtx.h>
+
+#include <test/jtx/TestHelpers.h>
 
 #include <xrpld/rpc/detail/Handler.h>
 
-#include <xrpl/beast/unit_test.h>
+#include <xrpl/beast/unit_test/suite.h>
 
+#include <algorithm>
+#include <array>
+#include <cassert>
 #include <chrono>
+#include <cmath>
+#include <cstddef>
 #include <iostream>
-#include <limits>
 #include <random>
+#include <tuple>
+#include <vector>
 // cspell: words stdev
 
 namespace xrpl::test {