chore: Automigrate (#926)

## Describe your changes

Fixes: #

## Checklist before requesting review

- [ ] Feature/fix PRs should add one atomic (as small as possible)
feature or fix.
- [ ] The code compiles and all the tests pass.

companies/migrations/0030_auto_20230816_0013.py

@@ -0,0 +1,22 @@
+# Generated by Django 2.2.24 on 2023-08-16 00:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("companies", "0029_auto_20210918_2247"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="company",
+            name="invoice_email_address",
+            field=models.EmailField(
+                blank=True,
+                max_length=200,
+                null=True,
+                verbose_name="Invoice e-mail address",
+            ),
+        ),
+    ]

exhibitors/migrations/0068_auto_20230816_0013.py

@@ -0,0 +1,22 @@
+# Generated by Django 2.2.24 on 2023-08-16 00:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("exhibitors", "0067_add_transport_information_read"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="exhibitor",
+            name="catalogue_contact_email_address",
+            field=models.EmailField(
+                blank=True,
+                max_length=255,
+                null=True,
+                verbose_name="Contact person's e-mail address",
+            ),
+        ),
+    ]