Use any instead of interface{} (#20577)

* replace interface{} with any

services/remotecluster/response.go

@@ -20,7 +20,7 @@ func (r *Response) IsSuccess() bool {
 }
 
 // SetPayload serializes an arbitrary struct as a RawMessage.
-func (r *Response) SetPayload(v interface{}) error {
+func (r *Response) SetPayload(v any) error {
 	raw, err := json.Marshal(v)
 	if err != nil {
 		return err

services/remotecluster/send.go

@@ -12,7 +12,7 @@ import (
 //
 // There are a number  of send channels (`MaxConcurrentSends`) to allow for sending to multiple
 // remotes concurrently, while preserving message order for each remote.
-func (rcs *Service) enqueueTask(ctx context.Context, remoteId string, task interface{}) error {
+func (rcs *Service) enqueueTask(ctx context.Context, remoteId string, task any) error {
 	if ctx == nil {
 		ctx = context.Background()
 	}

services/remotecluster/service.go

@@ -79,7 +79,7 @@ type ConnectionStateListener func(rc *model.RemoteCluster, online bool)
 type Service struct {
 	server     ServerIface
 	httpClient *http.Client
-	send       []chan interface{}
+	send       []chan any
 
 	// everything below guarded by `mux`
 	mux                      sync.RWMutex
@@ -120,9 +120,9 @@ func NewRemoteClusterService(server ServerIface) (*Service, error) {
 		connectionStateListeners: make(map[string]ConnectionStateListener),
 	}
 
-	service.send = make([]chan interface{}, MaxConcurrentSends)
+	service.send = make([]chan any, MaxConcurrentSends)
 	for i := range service.send {
-		service.send[i] = make(chan interface{}, SendChanBuffer)
+		service.send[i] = make(chan any, SendChanBuffer)
 	}
 
 	return service, nil