Allow abortrescan during RPC warmup

If we don't, we can get the hilarious error message that the node is Rescanning...
when trying to run abortrescan when the node automatically does a rescan on boot.

src/rpc/server.cpp

@@ -832,7 +832,8 @@ UniValue CRPCTable::execute(const std::string &strMethod, const UniValue &params
                 pcmd->name != "getnotarysendmany" && pcmd->name != "geterablockheights" &&
                 pcmd->name != "getaddressesbyaccount" && pcmd->name != "listaddresses" && pcmd->name != "z_exportwallet" &&
                 pcmd->name != "notaries" && pcmd->name != "signmessage" && pcmd->name != "decoderawtransaction" &&
-                pcmd->name != "dumpprivkey" && pcmd->name != "getpeerinfo" && pcmd->name != "getnetworkinfo" ) {
+                pcmd->name != "dumpprivkey" && pcmd->name != "getpeerinfo" && pcmd->name != "getnetworkinfo" &&
+                pcmd->name != "abortrescan") {
                 throw JSONRPCError(RPC_IN_WARMUP, rpcWarmupStatus);
             }
         }