Add BigAutoField to id fields (#189)

* Add `BigAutoField` to `id` fields

* Change id defaults to `BigAutoField`

* ci: auto fixes from pre-commit hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: arkain

src/djangocms_snippet/apps.py

@@ -5,3 +5,4 @@
 class SnippetConfig(AppConfig):
     name = "djangocms_snippet"
     verbose_name = _("Snippets")
+    default_auto_field = "django.db.models.BigAutoField"