allow more than one digits after dot in doi label

scipost_django/journals/migrations/0133_alter_volume_doi_label.py

+# Generated by Django 4.2.10 on 2024-07-04 09:11
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("journals", "0132_alter_journal_acceptance_criteria"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="volume",
+            name="doi_label",
+            field=models.CharField(
+                db_index=True,
+                max_length=200,
+                unique=True,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        "^((SciPost)[a-zA-Z]+|(MigPol))\\.\\w+$",
+                        "Only expressions with regex ((SciPost)[a-zA-Z]+|(MigPol))\\.\\w+ are allowed.",
+                    )
+                ],
+            ),
+        ),
+    ]