Use any instead of interface{} (#20577)

* replace interface{} with any

app/webhook_test.go

@@ -388,7 +388,7 @@ func TestSplitWebhookPost(t *testing.T) {
 		"LongPostAndMultipleAttachments": {
 			Post: &model.Post{
 				Message: strings.Repeat("本", maxPostSize*3/2),
-				Props: map[string]interface{}{
+				Props: map[string]any{
 					"attachments": []*model.SlackAttachment{
 						{
 							Text: strings.Repeat("本", 1000),
@@ -408,7 +408,7 @@ func TestSplitWebhookPost(t *testing.T) {
 				},
 				{
 					Message: strings.Repeat("本", maxPostSize/2),
-					Props: map[string]interface{}{
+					Props: map[string]any{
 						"attachments": []*model.SlackAttachment{
 							{
 								Text: strings.Repeat("本", 1000),
@@ -420,7 +420,7 @@ func TestSplitWebhookPost(t *testing.T) {
 					},
 				},
 				{
-					Props: map[string]interface{}{
+					Props: map[string]any{
 						"attachments": []*model.SlackAttachment{
 							{
 								Text: strings.Repeat("本", model.PostPropsMaxUserRunes-1000),
@@ -433,7 +433,7 @@ func TestSplitWebhookPost(t *testing.T) {
 		"UnsplittableProps": {
 			Post: &model.Post{
 				Message: "foo",
-				Props: map[string]interface{}{
+				Props: map[string]any{
 					"foo": strings.Repeat("x", model.PostPropsMaxUserRunes*2),
 				},
 			},
@@ -467,7 +467,7 @@ func makePost(message int, attachments []int) *model.Post {
 			}
 			sa = append(sa, attach)
 		}
-		props = map[string]interface{}{"attachments": sa}
+		props = map[string]any{"attachments": sa}
 	}
 	post := &model.Post{
 		Message: strings.Repeat("那", message),
@@ -782,7 +782,7 @@ func TestDoOutgoingWebhookRequest(t *testing.T) {
 	})
 
 	t.Run("with a slow response", func(t *testing.T) {
-		releaseHandler := make(chan interface{})
+		releaseHandler := make(chan any)
 
 		server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			// Don't actually handle the response, allowing the app to timeout.