Made StreamingSocket::isListener member atomic

modules/juce_core/network/juce_Socket.h

@@ -180,8 +180,7 @@ private:
     //==============================================================================
     String hostName;
     std::atomic<int> portNumber { 0 }, handle { -1 };
-    std::atomic<bool> connected { false };
-    bool isListener = false;
+    std::atomic<bool> connected { false }, isListener { false };
     mutable CriticalSection readLock;
 
     StreamingSocket (const String& hostname, int portNumber, int handle);