Fix bug with release year

Closes #31 (closed)

database/migrations/2025_03_19_170050_create_multimedia_table.php

@@ -23,7 +23,7 @@ public function up()
             $table->string('category');
             $table->decimal('rating', 3, 1)->unsigned();
             $table->string('language');
-            $table->year('release_year');
+            $table->integer('release_year');
             $table->text('description');
             $table->string('picture');
             $table->enum('type', ['Pelicula', 'Serie']);