validation: VerifyDB only needs Consensus::Params

Previously we were passing in CChainParams, when VerifyDB only needed
the Consensus::Params subset.

src/rpc/blockchain.cpp

@@ -1364,7 +1364,7 @@ static RPCHelpMan verifychain()
 
     CChainState& active_chainstate = chainman.ActiveChainstate();
     return CVerifyDB().VerifyDB(
-        active_chainstate, Params(), active_chainstate.CoinsTip(), check_level, check_depth);
+        active_chainstate, Params().GetConsensus(), active_chainstate.CoinsTip(), check_level, check_depth);
 },
     };
 }