Update tests with newRpcSocketClient

tests/testerrors.nim

@@ -7,7 +7,7 @@ import unittest, debugclient, ../rpcserver
 import strformat, chronicles
 
 var server = newRpcSocketServer("localhost", 8547.Port)
-var client = newRpcStreamClient()
+var client = newRpcSocketClient()
 
 server.start()
 waitFor client.connect("localhost", Port(8547))

tests/testethcalls.nim

@@ -8,7 +8,7 @@ template sourceDir: string = currentSourcePath.rsplit(DirSep, 1)[0]
 
 var
   server = newRpcSocketServer("localhost", Port(8546))
-  client = newRpcStreamClient()
+  client = newRpcSocketClient()
 
 ## Generate Ethereum server RPCs
 server.addEthRpcs()

tests/testserverclient.nim

@@ -2,7 +2,7 @@ import unittest, json, chronicles
 import  ../rpcclient, ../rpcserver
 
 var srv = newRpcSocketServer(["localhost:8545"])
-var client = newRpcStreamClient()
+var client = newRpcSocketClient()
 
 # Create RPC on server
 srv.rpc("myProc") do(input: string, data: array[0..3, int]):