tests: updated the IP address of our own test server.

Author: agentzh

t/094-uthread-exit.t

@@ -475,7 +475,7 @@ after
         ngx.say("after")
         local sock = ngx.socket.tcp()
         sock:settimeout(12000)
-        local ok, err = sock:connect("106.187.41.147", 12345)
+        local ok, err = sock:connect("106.184.1.99", 12345)
         if not ok then
             ngx.say("failed to connect: ", err)
             return

t/128-duplex-tcp-socket.t

@@ -371,7 +371,7 @@ F(ngx_http_lua_socket_tcp_finalize_write_part) {
         end
 
         sock:settimeout(300)
-        local ok, err = sock:connect("106.187.41.147", 12345)
+        local ok, err = sock:connect("106.184.1.99", 12345)
         ngx.say("connect: ", ok, " ", err)
 
         local ok, err = sock:close()