HttpClient - fixed validation of hostname and port in case proxy usage

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbHttpClient.java

@@ -336,8 +336,8 @@ public class TbHttpClient {
         String hostname = properties.getProperty(hostProperty);
         int port = Integer.parseInt(properties.getProperty(portProperty));
 
-        checkProxyHost(config.getProxyHost());
-        checkProxyPort(config.getProxyPort());
+        checkProxyHost(hostname);
+        checkProxyPort(port);
 
         var proxy = option
                 .type(ProxyProvider.Proxy.HTTP)
@@ -362,8 +362,8 @@ public class TbHttpClient {
         ProxyProvider.Proxy type = SOCKS_VERSION_5.equals(version) ? ProxyProvider.Proxy.SOCKS5 : ProxyProvider.Proxy.SOCKS4;
         int port = Integer.parseInt(properties.getProperty(SOCKS_PROXY_PORT));
 
-        checkProxyHost(config.getProxyHost());
-        checkProxyPort(config.getProxyPort());
+        checkProxyHost(hostname);
+        checkProxyPort(port);
 
         ProxyProvider.Builder proxy = option
                 .type(type)