Revert "Revert "Add support for reference_type (#1502)" (#1517)"

This reverts commit 6727786.

Signed-off-by: ziadhany <ziadhany2016@gmail.com>

Author: TG1999

vulnerabilities/migrations/0058_vulnerabilityreference_reference_type.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.1.13 on 2024-07-18 21:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("vulnerabilities", "0057_kev"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="vulnerabilityreference",
+            name="reference_type",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("advisory", "Advisory"),
+                    ("exploit", "Exploit"),
+                    ("mailing_list", "Mailing List"),
+                    ("bug", "Bug"),
+                    ("other", "Other"),
+                ],
+                max_length=20,
+            ),
+        ),
+    ]