[validation] Merkle root malleation should be caught by IsBlockMutated

Github-Pull: #29412
Rebased-From: 2d8495e080

src/test/validation_tests.cpp

@@ -4,11 +4,16 @@
 
 #include <chainparams.h>
 #include <consensus/amount.h>
+#include <consensus/merkle.h>
+#include <core_io.h>
+#include <hash.h>
 #include <net.h>
 #include <signet.h>
 #include <uint256.h>
 #include <validation.h>
 
+#include <string>
+
 #include <test/util/setup_common.h>
 
 #include <boost/test/unit_test.hpp>