fix migrations

fet2020/finance/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.2.4 on 2023-10-27 06:38
+# Generated by Django 4.2.4 on 2023-10-27 07:14
 
 import django.core.validators
 from django.db import migrations, models

fet2020/members/migrations/0005_alter_job_options_job_order_alter_member_username.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.2.4 on 2023-10-27 06:38
+# Generated by Django 4.2.4 on 2023-10-27 07:14
 
 from django.db import migrations, models
 
@@ -28,6 +28,6 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name="member",
             name="username",
-            field=models.CharField(max_length=128),
+            field=models.CharField(blank=True, max_length=128),
         ),
     ]