dev: update instance configuration model to take null and empty values

apiserver/plane/license/migrations/0003_alter_instanceconfiguration_value.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.5 on 2023-11-08 13:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('license', '0002_instanceconfiguration'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='instanceconfiguration',
+            name='value',
+            field=models.TextField(blank=True, null=True),
+        ),
+    ]

apiserver/plane/license/models/instance.py

@@ -32,7 +32,7 @@ class Instance(BaseModel):
 
 class InstanceConfiguration(AuditModel):
     key = models.CharField(max_length=100, unique=True)
-    value = models.TextField()
+    value = models.TextField(null=True, blank=True)
 
     class Meta:
         verbose_name = "Instance Configuration"