feat(notification): Handle long running transaction and add status support (#8900)

RESOLVES FRMW-2110
RESOLVES FRMW-2095

**What**
- Fix notification module to not retain transactions open while sending notification
- Add support for notification status [success, pending, failure]

packages/modules/notification/src/migrations/.snapshot-medusa-notification.json

@@ -212,6 +212,21 @@
           "nullable": true,
           "mappedType": "text"
         },
+        "status": {
+          "name": "status",
+          "type": "text",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "default": "'pending'",
+          "enumItems": [
+            "pending",
+            "success",
+            "failure"
+          ],
+          "mappedType": "enum"
+        },
         "provider_id": {
           "name": "provider_id",
           "type": "text",

packages/modules/notification/src/migrations/Migration20240830094712.ts

@@ -0,0 +1,13 @@
+import { Migration } from '@mikro-orm/migrations';
+
+export class Migration20240830094712 extends Migration {
+
+  async up(): Promise<void> {
+    this.addSql('alter table if exists "notification" add column if not exists "status" text check ("status" in (\'pending\', \'success\', \'failure\')) not null default \'pending\';');
+  }
+
+  async down(): Promise<void> {
+    this.addSql('alter table if exists "notification" drop column if exists "status";');
+  }
+
+}