Replacing interface{} with any everywhere (except generated mocks) (#29446)

server/channels/app/group.go

@@ -127,7 +127,7 @@ func (a *App) isUniqueToUsernames(val string) *model.AppError {
 		return model.NewAppError("isUniqueToUsernames", model.NoTranslation, nil, "", http.StatusInternalServerError).Wrap(err)
 	}
 	if user != nil {
-		return model.NewAppError("isUniqueToUsernames", "app.group.username_conflict", map[string]interface{}{"Username": val}, "", http.StatusBadRequest)
+		return model.NewAppError("isUniqueToUsernames", "app.group.username_conflict", map[string]any{"Username": val}, "", http.StatusBadRequest)
 	}
 	return nil
 }