cli-plugins/socket: modernize

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

cli-plugins/socket/socket_test.go

@@ -54,9 +54,9 @@ func TestPluginServer(t *testing.T) {
 	})
 
 	t.Run("allows reconnects", func(t *testing.T) {
-		var calls int32
+		var calls atomic.Int32
 		h := func(_ net.Conn) {
-			atomic.AddInt32(&calls, 1)
+			calls.Add(1)
 		}
 
 		srv, err := NewPluginServer(h)
@@ -70,7 +70,7 @@ func TestPluginServer(t *testing.T) {
 
 		waitForCalls := func(n int) {
 			poll.WaitOn(t, func(t poll.LogT) poll.Result {
-				if atomic.LoadInt32(&calls) == int32(n) {
+				if calls.Load() == int32(n) {
 					return poll.Success()
 				}
 				return poll.Continue("waiting for handler to be called")