[12.x] Add createMany mass-assignment variants to HasOneOrMany relation (#55262)

* Add createMany mass-assignment variants on HasOneOrMany relation

* Fixed docblock for forceCreateManyQuietly()

* Update HasOneOrMany.php

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: onlime

src/Illuminate/Database/Eloquent/Relations/HasOneOrMany.php

@@ -436,6 +436,34 @@ public function createManyQuietly(iterable $records)
         return Model::withoutEvents(fn () => $this->createMany($records));
     }
 
+    /**
+     * Create a Collection of new instances of the related model, allowing mass-assignment.
+     *
+     * @param  iterable  $records
+     * @return \Illuminate\Database\Eloquent\Collection<int, TRelatedModel>
+     */
+    public function forceCreateMany(iterable $records)
+    {
+        $instances = $this->related->newCollection();
+
+        foreach ($records as $record) {
+            $instances->push($this->forceCreate($record));
+        }
+
+        return $instances;
+    }
+
+    /**
+     * Create a Collection of new instances of the related model, allowing mass-assignment and without raising any events to the parent model.
+     *
+     * @param  iterable  $records
+     * @return \Illuminate\Database\Eloquent\Collection<int, TRelatedModel>
+     */
+    public function forceCreateManyQuietly(iterable $records)
+    {
+        return Model::withoutEvents(fn () => $this->forceCreateMany($records));
+    }
+
     /**
      * Set the foreign ID for creating a related model.
      *