[10.x] Move SetUniqueIds to run before the creating event (#46622)

* Move SetUniqueIds to run before the creating event

This fixes a BC caused by PR #46161

* Update Model.php

src/Illuminate/Database/Eloquent/Model.php

@@ -1276,6 +1276,10 @@ protected function getKeyForSaveQuery()
      */
     protected function performInsert(Builder $query)
     {
+        if ($this->usesUniqueIds()) {
+            $this->setUniqueIds();
+        }
+
         if ($this->fireModelEvent('creating') === false) {
             return false;
         }
@@ -1287,10 +1291,6 @@ protected function performInsert(Builder $query)
             $this->updateTimestamps();
         }
 
-        if ($this->usesUniqueIds()) {
-            $this->setUniqueIds();
-        }
-
         // If the model has an incrementing key, we can use the "insertGetId" method on
         // the query builder, which will give us back the final inserted ID for this
         // table from the database. Not all tables have to be incrementing though.