Add last degree field for coaches

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

registration/migrations/0010_coachregistration_last_degree.py

@@ -0,0 +1,22 @@
+# Generated by Django 5.0.1 on 2024-01-20 17:26
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("registration", "0009_participantregistration_housing_constraints_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="coachregistration",
+            name="last_degree",
+            field=models.CharField(
+                default="",
+                help_text="Your most recent degree in maths, computer science or physics, or your last entrance exam (CAPES, Agrégation,…)",
+                max_length=255,
+                verbose_name="most recent degree in mathematics, computer science or physics",
+            ),
+        ),
+    ]