Add country field in registration

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

registration/migrations/0014_participantregistration_country.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.0.6 on 2024-06-07 12:46
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        (
+            "registration",
+            "0013_participantregistration_photo_authorization_final_and_more",
+        ),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="participantregistration",
+            name="country",
+            field=models.CharField(
+                default="France", max_length=255, verbose_name="country"
+            ),
+        ),
+    ]